| poisonous plant | | |
| n. (plant) | 1. poisonous plant | a plant that when touched or ingested in sufficient quantity can be harmful or fatal to an organism. |
| ~ plant life, flora, plant | (botany) a living organism lacking the power of locomotion. |
| ~ aconite | any of various usually poisonous plants of the genus Aconitum having tuberous roots and palmately lobed leaves and blue or white flowers. |
| ~ cohosh, herb christopher, baneberry | a plant of the genus Actaea having acrid poisonous berries. |
| ~ hellebore | any plant of the Eurasian genus Helleborus. |
| ~ dogbane | any of several poisonous perennial plants of the genus Apocynum having acrid milky juice and bell-shaped white or pink flowers and a very bitter root. |
| ~ nerium oleander, oleander, rose bay | an ornamental but poisonous flowering shrub having narrow evergreen leaves and clusters of fragrant white to pink or red flowers: native to East Indies but widely cultivated in warm regions. |
| ~ climbing lily, creeping lily, gloriosa, gloriosa superba, glory lily | any plant of the genus Gloriosa of tropical Africa and Asia; a perennial herb climbing by means of tendrils at leaf tips having showy yellow to red or purple flowers; all parts are poisonous. |
| ~ common snowberry, snowberry, symphoricarpos alba, waxberry | deciduous shrub of western North America having spikes of pink flowers followed by round white berries. |
| ~ american holly, christmas holly | an evergreen tree. |
| ~ poison ash, poison dogwood, rhus vernix, toxicodendron vernix, poison sumac | smooth American swamp shrub with pinnate leaves and greenish flowers followed by greenish white berries; yields an irritating oil. |
| ~ markweed, poison mercury, rhus radicans, toxicodendron radicans, poison ivy, poison oak | climbing plant common in eastern and central United States with ternate leaves and greenish flowers followed by white berries; yields an irritating oil that causes a rash on contact. |
| ~ rhus diversiloba, toxicodendron diversilobum, western poison oak | poisonous shrub of the Pacific coast of North America that causes a rash on contact. |
| ~ eastern poison oak, rhus quercifolia, rhus toxicodenedron, toxicodendron quercifolium | poisonous shrub of southeastern United States causing a rash on contact. |
| ~ chinese lacquer tree, japanese lacquer tree, japanese sumac, japanese varnish tree, lacquer tree, rhus verniciflua, toxicodendron vernicifluum, varnish tree | small Asiatic tree yielding a toxic exudate from which lacquer is obtained. |
| ~ lantana | a flowering shrub. |
| ~ aethusa cynapium, fool's parsley, lesser hemlock | European weed naturalized in America that resembles parsley but causes nausea and poisoning when eaten. |
| ~ cicuta verosa, water hemlock | tall erect highly poisonous Eurasiatic perennial herb locally abundant in marshy areas. |
| ~ spotted cowbane, spotted hemlock, spotted water hemlock | tall biennial water hemlock of northeastern North America having purple-spotted stems and clusters of extremely poisonous tuberous roots resembling small sweet potatoes. |
| ~ california fern, conium maculatum, nebraska fern, poison hemlock, poison parsley, winter fern, hemlock | large branching biennial herb native to Eurasia and Africa and adventive in North America having large fernlike leaves and white flowers; usually found in damp habitats; all parts extremely poisonous. |
| ~ hemlock water dropwort, oenanthe crocata, water dropwort | European poisonous herb having tuberous roots, yellow juice that stains the skin, yellow flowers and foliage resembling celery; all parts extremely poisonous. |
| ~ oenanthe aquatica, water fennel | European poisonous herb with fibrous roots. |
| plant | | |
| n. (artifact) | 1. industrial plant, plant, works | buildings for carrying on industrial labor.; "they built a large plant to manufacture automobiles" |
| ~ bottling plant | a plant where beverages are put into bottles with caps. |
| ~ brewery | a plant where beer is brewed by fermentation. |
| ~ building complex, complex | a whole structure (as a building) made up of interconnected or related structures. |
| ~ distillery, still | a plant and works where alcoholic drinks are made by distillation. |
| ~ factory, manufactory, manufacturing plant, mill | a plant consisting of one or more buildings with facilities for manufacturing. |
| ~ gas system | facility (plant and equipment) for providing natural-gas service. |
| ~ mint | a plant where money is coined by authority of the government. |
| ~ packing plant, packinghouse | a plant where livestock are slaughtered and processed and packed as meat products. |
| ~ recycling plant | a plant for reprocessing used or abandoned materials. |
| ~ refinery | an industrial plant for purifying a crude substance. |
| ~ saltworks | a plant where salt is produced commercially. |
| ~ disposal plant, sewage disposal plant | a plant for disposing of sewage. |
| ~ smelter, smeltery | an industrial plant for smelting. |
| n. (tops) | 2. flora, plant, plant life | (botany) a living organism lacking the power of locomotion. |
| ~ organism, being | a living thing that has (or can develop) the ability to act or function independently. |
| ~ botanical medicine, herbal therapy, phytotherapy | the use of plants or plant extracts for medicinal purposes (especially plants that are not part of the normal diet). |
| ~ micro-organism, microorganism | any organism of microscopic size. |
| ~ phytoplankton | photosynthetic or plant constituent of plankton; mainly unicellular algae. |
| ~ parasite | an animal or plant that lives in or on a host (another animal or plant); it obtains nourishment from the host without benefiting or killing the host. |
| ~ coca | dried leaves of the coca plant (and related plants that also contain cocaine); chewed by Andean people for their stimulating effect. |
| ~ fugaciousness, fugacity | the lack of enduring qualities (used chiefly of plant parts). |
| ~ phytology, botany | the branch of biology that studies plants. |
| ~ circulation | free movement or passage (as of cytoplasm within a cell or sap through a plant).; "ocean circulation is an important part of global climate"; "a fan aids air circulation" |
| ~ botany, flora, vegetation | all the plant life in a particular region or period.; "Pleistocene vegetation"; "the flora of southern California"; "the botany of China" |
| ~ hood, cap | a protective covering that is part of a plant. |
| ~ kingdom plantae, plant kingdom, plantae | (botany) the taxonomic kingdom comprising all living or extinct plants. |
| ~ microflora | microscopic plants; bacteria are often considered to be microflora. |
| ~ crop | a cultivated plant that is grown commercially on a large scale. |
| ~ endemic | a plant that is native to a certain limited area.; "it is an endemic found only this island" |
| ~ holophyte | an organism that produces its own food by photosynthesis. |
| ~ non-flowering plant | a plant that does not bear flowers. |
| ~ plantlet | a young plant or a small plant. |
| ~ wilding | a wild uncultivated plant (especially a wild apple or crabapple tree). |
| ~ ornamental | any plant grown for its beauty or ornamental value. |
| ~ pot plant | a plant suitable for growing in a flowerpot (especially indoors). |
| ~ acrogen | any flowerless plant such as a fern (pteridophyte) or moss (bryophyte) in which growth occurs only at the tip of the main stem. |
| ~ apomict | a plant that reproduces or is reproduced by apomixis. |
| ~ aquatic | a plant that lives in or on water. |
| ~ cryptogam | formerly recognized taxonomic group including all flowerless and seedless plants that reproduce by means of spores: ferns, mosses, algae, fungi. |
| ~ annual | (botany) a plant that completes its entire life cycle within the space of a year. |
| ~ biennial | (botany) a plant having a life cycle that normally takes two seasons from germination to death to complete; flowering biennials usually bloom and fruit in the second season. |
| ~ perennial | (botany) a plant lasting for three seasons or more. |
| ~ escape | a plant originally cultivated but now growing wild. |
| ~ hygrophyte | a plant that grows in a moist habitat. |
| ~ neophyte | a plant that is found in an area where it had not been recorded previously. |
| ~ embryo | (botany) a minute rudimentary plant contained within a seed or an archegonium. |
| ~ monocarp, monocarpic plant, monocarpous plant | a plant that bears fruit once and dies. |
| ~ sporophyte | the spore-producing individual or phase in the life cycle of a plant having alternation of generations. |
| ~ gametophyte | the gamete-bearing individual or phase in the life cycle of a plant having alternation of generations. |
| ~ houseplant | any of a variety of plants grown indoors for decorative purposes. |
| ~ garden plant | any of a variety of plants usually grown especially in a flower or herb garden. |
| ~ tracheophyte, vascular plant | green plant having a vascular system: ferns, gymnosperms, angiosperms. |
| ~ plant part, plant structure | any part of a plant or fungus. |
| ~ poisonous plant | a plant that when touched or ingested in sufficient quantity can be harmful or fatal to an organism. |
| ~ aerophyte, air plant, epiphyte, epiphytic plant | plant that derives moisture and nutrients from the air and rain; usually grows on another plant but not parasitic on it. |
| ~ rock plant | plant that grows on or among rocks or is suitable for a rock garden. |
| ~ autophyte, autophytic plant, autotroph, autotrophic organism | plant capable of synthesizing its own food from simple organic substances. |
| ~ squamule | a minute scale. |
| ~ myrmecophyte | plant that affords shelter or food to ants that live in symbiotic relations with it. |
| ~ nitrification | the oxidation of ammonium compounds in dead organic material into nitrates and nitrites by soil bacteria (making nitrogen available to plants). |
| ~ perennation | the process of living through a number of years (as a perennial plant). |
| ~ photosynthesis | synthesis of compounds with the aid of radiant energy (especially in plants). |
| ~ alder blight | a disease of alders caused by the woolly alder aphid (a plant louse). |
| ~ peroxidase | any of a group of enzymes (occurring especially in plant cells) that catalyze the oxidation of a compound by a peroxide. |
| ~ tenderiser, tenderizer | a substance (as the plant enzyme papain) applied to meat to make it tender. |
| ~ propagate | cause to propagate, as by grafting or layering. |
| ~ etiolate | bleach and alter the natural development of (a green plant) by excluding sunlight. |
| ~ bruise | damage (plant tissue) by abrasion or pressure.; "The customer bruised the strawberries by squeezing them" |
| ~ domesticate, tame, cultivate, naturalise, naturalize | adapt (a wild plant or unclaimed land) to the environment.; "domesticate oats"; "tame the soil" |
| ~ accrete | grow together (of plants and organs).; "After many years the rose bushes grew together" |
| ~ girdle, deaden | cut a girdle around so as to kill by interrupting the circulation of water and nutrients.; "girdle the plant" |
| ~ acid-loving | thriving in a relatively acidic environment (especially of plants requiring a pH well below 7). |
| ~ alkaline-loving | thriving in a relatively alkaline environment; (especially of plants requiring a pH above 7). |
| ~ apocarpous | (of ovaries of flowering plants) consisting of carpels that are free from one another as in buttercups or roses. |
| ~ syncarpous | (of ovaries of flowering plants) consisting of united carpels. |
| ~ sedgy | covered with sedges (grasslike marsh plants). |
| ~ floccose | (of plants) having tufts of soft woolly hairs. |
| ~ hispid | (of animals or plants) having stiff coarse hairs or bristles.; "plants with hispid stems" |
| ~ pappose | (of plants such as dandelions and thistles) having pappi or tufts of featherlike hairs or delicate bristles. |
| ~ carnivorous | (used of plants as well as animals) feeding on animals.; "carnivorous plants are capable of trapping and digesting small animals especially insects" |
| ~ saprophytic | (of some plants or fungi) feeding on dead or decaying organic matter. |
| ~ insectivorous | (of animals and plants) feeding on insects. |
| ~ etiolate, etiolated, blanched | (especially of plants) developed without chlorophyll by being deprived of light.; "etiolated celery" |
| ~ tender | (of plants) not hardy; easily killed by adverse growing condition.; "tender green shoots" |
| ~ dicotyledonous | (of a flowering plant) having two cotyledons in the seed. |
| ~ monocotyledonous | (of a flowering plant) having a single cotyledon in the seed as in grasses and lilies. |
| ~ evergreen | (of plants and shrubs) bearing foliage throughout the year. |
| ~ deciduous | (of plants and shrubs) shedding foliage at the end of the growing season. |
| ~ campylotropous | (of a plant ovule) curved with the micropyle near the base almost touching its stalk. |
| ~ orthotropous | (of a plant ovule) completely straight with the micropyle at the apex. |
| ~ anatropous, inverted | (of a plant ovule) completely inverted; turned back 180 degrees on its stalk. |
| ~ amphitropous | (of a plant ovule) partly inverted; turned back 90 degrees on its stalk. |
| ~ epiphytotic | (of plants) epidemic among plants of a single kind especially over a wide area.; "an epiphytotic blight of potatoes"; "epiphytotic conditions associated with a single-plant agriculture" |
| ~ amentaceous, amentiferous | (of plants) bearing or characterized by aments or catkins. |
| ~ half-hardy | (of plants) requiring protection from frost.; "half-hardy annuals" |
| ~ gregarious | (of plants) growing in groups that are close together. |
| ~ clustered | growing close together but not in dense mats. |
| ~ ungregarious | (of plants) growing together in groups that are not close together. |
| ~ caespitose, cespitose, tufted | (of plants) growing in small dense clumps or tufts. |
| ~ leggy, tall-growing | (of plants) having tall spindly stems. |
| ~ endangered | (of flora or fauna) in imminent danger of extinction.; "an endangered species" |
| ~ threatened | (of flora or fauna) likely in the near future to become endangered.; "the spotted owl is a threatened species, not yet an endangered one" |
| n. (person) | 3. plant | an actor situated in the audience whose acting is rehearsed but seems spontaneous to the audience. |
| ~ actor, histrion, thespian, role player, player | a theatrical performer. |
| n. (cognition) | 4. plant | something planted secretly for discovery by another.; "the police used a plant to trick the thieves"; "he claimed that the evidence against him was a plant" |
| ~ dodge, stratagem, contrivance | an elaborate or deceitful scheme contrived to deceive or evade.; "his testimony was just a contrivance to throw us off the track" |
| v. (contact) | 5. plant, set | put or set (seeds, seedlings, or plants) into the ground.; "Let's plant flowers in the garden" |
| ~ lay, place, put, set, position, pose | put into a certain place or abstract location.; "Put your things here"; "Set the tray down"; "Set the dogs on the scent of the missing children"; "Place emphasis on a certain point" |
| ~ root | plant by the roots. |
| ~ puddle | dip into mud before planting.; "puddle young plants" |
| ~ checkrow | plant in checkrows. |
| ~ bed | place (plants) in a prepared bed of soil. |
| ~ dibble | plant with a wooden hand tool.; "dibble Spring bulbs" |
| ~ afforest, forest | establish a forest on previously unforested land.; "afforest the mountains" |
| ~ replant | plant again or anew.; "They replanted the land"; "He replanted the seedlings" |
| ~ tree | plant with trees.; "this lot should be treed so that the house will be shaded in summer" |
| v. (contact) | 6. embed, engraft, imbed, implant, plant | fix or set securely or deeply.; "He planted a knee in the back of his opponent"; "The dentist implanted a tooth in the gum" |
| ~ infix, insert, introduce, enter | put or introduce into something.; "insert a picture into the text" |
| ~ pot | plant in a pot.; "He potted the palm" |
| ~ nest | fit together or fit inside.; "nested bowls" |
| ~ bury, sink | embed deeply.; "She sank her fingers into the soft sand"; "He buried his head in her lap" |
| v. (creation) | 7. constitute, establish, found, institute, plant | set up or lay the groundwork for.; "establish a new department" |
| ~ initiate, pioneer | take the lead or initiative in; participate in the development of.; "This South African surgeon pioneered heart transplants" |
| ~ fix | set or place definitely.; "Let's fix the date for the party!" |
| ~ appoint, constitute, name, nominate | create and charge with a task or function.; "nominate a committee" |
| v. (possession) | 8. plant | place into a river.; "plant fish" |
| ~ animal husbandry | breeding and caring for farm animals. |
| ~ stock | provide or furnish with a stock of something.; "stock the larder with meat" |
| v. (contact) | 9. plant | place something or someone in a certain position in order to secretly observe or deceive.; "Plant a spy in Moscow"; "plant bugs in the dissident's apartment" |
| ~ lay, place, put, set, position, pose | put into a certain place or abstract location.; "Put your things here"; "Set the tray down"; "Set the dogs on the scent of the missing children"; "Place emphasis on a certain point" |
| v. (cognition) | 10. implant, plant | put firmly in the mind.; "Plant a thought in the students' minds" |
| ~ communicate, pass along, put across, pass on, pass | transmit information.; "Please communicate this message to all employees"; "pass along the good news" |
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