| cyanide | | |
| n. (substance) | 1. cyanide, nitril, nitrile | any of a class of organic compounds containing the cyano radical -CN. |
| ~ organic compound | any compound of carbon and another element or a radical. |
| ~ acrylonitrile, propenonitrile, vinyl cyanide | a colorless liquid unsaturated nitrile made from propene. |
| n. (substance) | 2. cyanide | an extremely poisonous salt of hydrocyanic acid. |
| ~ sodium cyanide | a white poisonous salt (NaCN) used in electroplating. |
| ~ potassium cyanide | a poisonous salt (KCN) used in electroplating and in photography. |
| ~ salt | a compound formed by replacing hydrogen in an acid by a metal (or a radical that acts like a metal). |
| rasp | | |
| n. (communication) | 1. rasp, rasping | uttering in an irritated tone. |
| ~ utterance, vocalization | the use of uttered sounds for auditory communication. |
| n. (artifact) | 2. rasp, wood file | a coarse file with sharp pointed projections. |
| ~ file | a steel hand tool with small sharp teeth on some or all of its surfaces; used for smoothing wood or metal. |
| v. (contact) | 3. rasp | scrape with a rasp. |
| ~ rub | move over something with pressure.; "rub my hands"; "rub oil into her skin" |
| ~ abrade, abrase, corrade, rub down, rub off | wear away. |
| v. (communication) | 4. rasp | utter in a grating voice. |
| ~ mouth, speak, talk, verbalise, verbalize, utter | express in speech.; "She talks a lot of nonsense"; "This depressed patient does not verbalize" |
| rub | | |
| n. (cognition) | 1. hang-up, hitch, rub, snag | an unforeseen obstacle. |
| ~ obstacle, obstruction | something immaterial that stands in the way and must be circumvented or surmounted.; "lack of imagination is an obstacle to one's advancement"; "the poverty of a district is an obstacle to good education"; "the filibuster was a major obstruction to the success of their plan" |
| n. (act) | 2. rub, wipe | the act of rubbing or wiping.; "he gave the hood a quick rub" |
| ~ physical contact, contact | the act of touching physically.; "her fingers came in contact with the light switch" |
| ~ scuff | the act of scuffing (scraping or dragging the feet). |
| v. (contact) | 3. rub | move over something with pressure.; "rub my hands"; "rub oil into her skin" |
| ~ touch | make physical contact with, come in contact with.; "Touch the stone for good luck"; "She never touched her husband" |
| ~ guide, pass, run, draw | pass over, across, or through.; "He ran his eyes over her body"; "She ran her fingers along the carved figurine"; "He drew her hair through his fingers" |
| ~ brush | rub with a brush, or as if with a brush.; "Johnson brushed the hairs from his jacket" |
| ~ pumice | rub with pumice, in order to clean or to smoothen. |
| ~ gauge | rub to a uniform size.; "gauge bricks" |
| ~ puree, strain | rub through a strainer or process in an electric blender.; "puree the vegetables for the baby" |
| ~ rosin | rub rosin onto.; "rosin the violin bow" |
| ~ sponge down, sponge off | clean with a sponge, by rubbing. |
| ~ worry | touch or rub constantly.; "The old man worried his beads" |
| ~ scrub, scour | clean with hard rubbing.; "She scrubbed his back" |
| ~ abrade, scour | rub hard or scrub.; "scour the counter tops" |
| ~ smudge, smutch, smear, blur | make a smudge on; soil by smudging. |
| ~ scrape, grate | scratch repeatedly.; "The cat scraped at the armchair" |
| ~ wipe, pass over | rub with a circular motion.; "wipe the blackboard"; "He passed his hands over the soft cloth" |
| ~ grate | reduce to small shreds or pulverize by rubbing against a rough or sharp perforated surface.; "grate carrots and onions"; "grate nutmeg" |
| v. (contact) | 4. chafe, fray, fret, rub, scratch | cause friction.; "my sweater scratches" |
| ~ adjoin, contact, touch, meet | be in direct physical contact with; make contact.; "The two buildings touch"; "Their hands touched"; "The wire must not contact the metal cover"; "The surfaces contact at this point" |
| v. (perception) | 5. itch, rub, scratch | scrape or rub as if to relieve itching.; "Don't scratch your insect bites!" |
| ~ irritate | excite to an abnormal condition, or chafe or inflame.; "Aspirin irritates my stomach" |
| scrape | | |
| n. (event) | 1. scrape, scraping, scratch, scratching | a harsh noise made by scraping.; "the scrape of violin bows distracted her" |
| ~ noise | sound of any kind (especially unintelligible or dissonant sound).; "he enjoyed the street noises"; "they heard indistinct noises of people talking"; "during the firework display that ended the gala the noise reached 98 decibels" |
| n. (state) | 2. abrasion, excoriation, scrape, scratch | an abraded area where the skin is torn or worn off. |
| ~ graze | a superficial abrasion. |
| ~ rope burn | abrasion (usually on the hands) caused by friction from a rope. |
| ~ wound, lesion | an injury to living tissue (especially an injury involving a cut or break in the skin). |
| n. (communication) | 3. scrape, scraping | a deep bow with the foot drawn backwards (indicating excessive humility).; "all that bowing and scraping did not impress him" |
| ~ bowing, obeisance, bow | bending the head or body or knee as a sign of reverence or submission or shame or greeting. |
| n. (attribute) | 4. mark, scar, scrape, scratch | an indication of damage. |
| ~ blemish, mar, defect | a mark or flaw that spoils the appearance of something (especially on a person's body).; "a facial blemish" |
| v. (contact) | 5. grate, scrape | scratch repeatedly.; "The cat scraped at the armchair" |
| ~ paw | scrape with the paws.; "The bear pawed the door" |
| ~ rub | move over something with pressure.; "rub my hands"; "rub oil into her skin" |
| v. (creation) | 6. scrape | make by scraping.; "They scraped a letter into the stone" |
| ~ create, make | make or cause to be or to become.; "make a mess in one's office"; "create a furor" |
| v. (contact) | 7. scrape, scratch, scratch up | cut the surface of; wear away the surface of. |
| ~ claw | scratch, scrape, pull, or dig with claws or nails. |
| ~ scuff | mar by scuffing.; "scuffed shoes" |
| ~ incise | make an incision into by carving or cutting. |
| v. (motion) | 8. genuflect, kowtow, scrape | bend the knees and bow in a servile manner. |
| ~ bow | bend the head or the upper part of the body in a gesture of respect or greeting.; "He bowed before the King" |
| v. (contact) | 9. come up, scrape, scrape up, scratch | gather (money or other resources) together over time.; "She had scraped together enough money for college"; "they scratched a meager living" |
| ~ nickel-and-dime | accumulate gradually.; "she nickeled-and-dimed together a small house for her family" |
| ~ accumulate, collect, compile, amass, hoard, roll up, pile up | get or gather together.; "I am accumulating evidence for the man's unfaithfulness to his wife"; "She is amassing a lot of data for her thesis"; "She rolled up a small fortune" |
| v. (contact) | 10. scrape, skin | bruise, cut, or injure the skin or the surface of.; "The boy skinned his knee when he fell" |
| ~ injure, wound | cause injuries or bodily harm to. |
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