| equilibrium | | |
| n. (state) | 1. equilibrium | a stable situation in which forces cancel one another. |
| ~ situation, state of affairs | the general state of things; the combination of circumstances at a given time.; "the present international situation is dangerous"; "wondered how such a state of affairs had come about"; "eternal truths will be neither true nor eternal unless they have fresh meaning for every new social situation" |
| ~ balance | a state of equilibrium. |
| ~ balance of power | an equilibrium of power between nations. |
| ~ dynamic balance | (aeronautics) the state of equilibrium in which centrifugal forces due to a rotating mass (e.g., a propeller) do not produce force in the shaft and so vibration is reduced. |
| ~ homeostasis | (physiology) metabolic equilibrium actively maintained by several complex biological mechanisms that operate via the autonomic nervous system to offset disrupting changes. |
| ~ isostasy | (geology) a general equilibrium of the forces tending to elevate or depress the earth's crust. |
| ~ nash equilibrium | (game theory) a stable state of a system that involves several interacting participants in which no participant can gain by a change of strategy as long as all the other participants remain unchanged. |
| ~ poise | a state of being balanced in a stable equilibrium. |
| ~ thermal equilibrium | a state in which all parts of a system are at the same temperature. |
| n. (process) | 2. chemical equilibrium, equilibrium | a chemical reaction and its reverse proceed at equal rates. |
| ~ acid-base balance, acid-base equilibrium | (physiology) the normal equilibrium between acids and alkalis in the body.; "with a normal acid-base balance in the body the blood is slightly alkaline" |
| ~ chemical reaction, reaction | (chemistry) a process in which one or more substances are changed into others.; "there was a chemical reaction of the lime with the ground water" |
| n. (shape) | 3. balance, counterbalance, equilibrium, equipoise | equality of distribution. |
| ~ structure, construction | a thing constructed; a complex entity constructed of many parts.; "the structure consisted of a series of arches"; "she wore her hair in an amazing construction of whirls and ribbons" |
| ~ conformation | a symmetrical arrangement of the parts of a thing. |
| ~ symmetry, proportion | balance among the parts of something. |
| n. (cognition) | 4. equilibrium, labyrinthine sense, sense of balance, sense of equilibrium, vestibular sense | a sensory system located in structures of the inner ear that registers the orientation of the head. |
| ~ proprioception | the ability to sense the position and location and orientation and movement of the body and its parts. |
| snake | | |
| n. (animal) | 1. ophidian, serpent, snake | limbless scaly elongate reptile; some are venomous. |
| ~ diapsid, diapsid reptile | reptile having a pair of openings in the skull behind each eye. |
| ~ ophidia, serpentes, suborder ophidia, suborder serpentes | snakes. |
| ~ colubrid, colubrid snake | mostly harmless temperate-to-tropical terrestrial or arboreal or aquatic snakes. |
| ~ blind snake, worm snake | wormlike burrowing snake of warm regions having vestigial eyes. |
| ~ constrictor | any of various large nonvenomous snakes that kill their prey by crushing it in its coils. |
| ~ elapid, elapid snake | any of numerous venomous fanged snakes of warmer parts of both hemispheres. |
| ~ sea snake | any of numerous venomous aquatic viviparous snakes having a fin-like tail; of warm littoral seas; feed on fish which they immobilize with quick-acting venom. |
| ~ viper | venomous Old World snakes characterized by hollow venom-conducting fangs in the upper jaw. |
| n. (person) | 2. snake, snake in the grass | a deceitful or treacherous person. |
| ~ bad person | a person who does harm to others. |
| n. (object) | 3. snake, snake river | a tributary of the Columbia River that rises in Wyoming and flows westward; discovered in 1805 by the Lewis and Clark Expedition. |
| ~ gem state, id, idaho | a state in the Rocky Mountains. |
| ~ beaver state, or, oregon | a state in northwestern United States on the Pacific. |
| ~ evergreen state, wa, washington | a state in northwestern United States on the Pacific. |
| ~ equality state, wy, wyoming | a state in the western United States; mountainous in the west and north with the Great Plains in the east. |
| ~ river | a large natural stream of water (larger than a creek).; "the river was navigable for 50 miles" |
| ~ twin falls, twin | a waterfall in the Snake River in southern Idaho. |
| n. (object) | 4. hydra, snake | a long faint constellation in the southern hemisphere near the equator stretching between Virgo and Cancer. |
| ~ constellation | a configuration of stars as seen from the earth. |
| n. (artifact) | 5. snake | something long, thin, and flexible that resembles a snake. |
| ~ object, physical object | a tangible and visible entity; an entity that can cast a shadow.; "it was full of rackets, balls and other objects" |
| ~ closet auger | a snake used to unblock toilets. |
| ~ auger, plumber's snake | a long flexible steel coil for dislodging stoppages in curved pipes. |
| ~ trap-and-drain auger | a plumber's snake for clearing a trap and drain. |
| v. (motion) | 6. snake | move smoothly and sinuously, like a snake. |
| ~ glide | move smoothly and effortlessly. |
| v. (stative) | 7. snake | form a snake-like pattern.; "The river snakes through the valley" |
| ~ curve, wind, twist | extend in curves and turns.; "The road winds around the lake"; "the path twisted through the forest" |
| v. (motion) | 8. snake | move along a winding path.; "The army snaked through the jungle" |
| ~ meander, thread, wind, wander, weave | to move or cause to move in a sinuous, spiral, or circular course.; "the river winds through the hills"; "the path meanders through the vineyards"; "sometimes, the gout wanders through the entire body" |
| hang up | | |
| v. (contact) | 1. hang up | put a telephone receiver back in its cradle. |
| ~ put back, replace | put something back where it belongs.; "replace the book on the shelf after you have finished reading it"; "please put the clean dishes back in the cabinet when you have washed them" |
| v. (contact) | 2. hang, hang up | cause to be hanging or suspended.; "Hang that picture on the wall" |
| ~ fasten, fix, secure | cause to be firmly attached.; "fasten the lock onto the door"; "she fixed her gaze on the man" |
| ~ suspend | hang freely.; "The secret police suspended their victims from the ceiling and beat them" |
| ~ hang | be suspended or hanging.; "The flag hung on the wall" |
| ~ hang | be suspended or hanging.; "The flag hung on the wall" |
| ~ sling | hang loosely or freely; let swing. |
| v. (change) | 3. hang up | interrupt a telephone conversation. |
| ~ break off, break short, cut short | interrupt before its natural or planned end.; "We had to cut short our vacation" |
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