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noun (1) ˈfin. Synonyms of fin. 1. : an external membranous process of an aquatic animal (such as a fish) used in propelling or guiding the body see fish illustration. 2. : something resembling a fin: such as. a. : hand, arm. b (1) : an appendage of a boat (such as a submarine) (2) : an airfoil attached to an airplane for directional stability. c.
A fin is a thin component or appendage attached to a larger body or structure. [1] . Fins typically function as foils that produce lift or thrust, or provide the ability to steer or stabilize motion while traveling in water, air, or other fluids. Fins are also used to increase surface areas for heat transfer purposes, or simply as ornamentation.
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fin noun [C] (FISH/AIRCRAFT) Add to word list. Add to word list. a thin vertical part sticking out of the body of especially a fish or an aircraft that helps balance and movement: We could see the fin of a shark as it slowly circled our boat. a fish's dorsal fin.
Fin definition: a membranous, winglike or paddlelike organ attached to any of various parts of the body of fishes and certain other aquatic animals, used for propulsion, steering, or balancing.. See examples of FIN used in a sentence.
3 days ago · A device worn by divers and swimmers on their feet. The divers wore fins to swim faster. An extending part on a surface of a radiator, engine, heatsink, etc., used to facilitate cooling. A sharp raised edge (generally in concrete) capable of damaging a roof membrane or vapor retarder.
noun. fins. Any of several winglike, membranous organs on the body of a fish, dolphin, etc., used in swimming, turning, and balancing. Webster's New World. Similar definitions. Anything like a fin in shape or use. Webster's New World. Similar definitions. A five-dollar bill. Webster's New World. The end; finish; conclusion. Webster's New World.
fin 1. (fĭn) n. 1. A membranous appendage extending from the body of a fish or other aquatic animal, used for propelling, steering, or balancing the body in the water. 2. Something resembling a fin in shape or function, as: a.
fin /fɪn/ n. any of the firm appendages that are the organs of locomotion and balance in fishes and some other aquatic animals. Most fishes have paired and unpaired fins, the former corresponding to the limbs of higher vertebrates. a part or appendage that resembles a fin.
Meaning of fin – Learner’s Dictionary. fin. noun [ C ] uk / fɪn / us. Add to word list. a thin, triangular part on a fish, which helps it to swim. (Definition of fin from the Cambridge Learner's Dictionary © Cambridge University Press) Translations of fin. in Chinese (Traditional) 鰭, （飛機的）翼（片）, 鰭狀物… See more. in Chinese (Simplified)
A fin is the part of a fish's body that protrudes into the water and helps it balance and move in various directions. Sharks use their dorsal fins to stabilize their bodies as they propel through the water.
