The meaning of FIN is an external membranous process of an aquatic animal (such as a fish) used in propelling or guiding the body.

FIN meaning: 1. a thin vertical part sticking out of the body of especially a fish or an aircraft that helps…. Learn more.

Jan 1, 2026 · fin (plural fins) (ichthyology, zootomy) One of the appendages of a fish, used to propel itself and to manoeuvre / maneuver. quotations The fish's fins minimize water flow.

Apr 3, 2025 · In REEFSCAPE presented by Haas, FIRST® Robotics Competition teams will use their engineering skills to strengthen one of the ocean’s most diverse habitats. Watch the game animation …

FIN in British English abbreviation for Finland (international car registration)

Information and results from the FIRST Robotics Competition 2025 FIRST Indiana Robotics District

Definition of fin noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

fin meaning, definition, what is fin: one of the thin body parts that a fish u...: Learn more.

fin1 (fin), n., v., finned, fin•ning. n. Zoology 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, …

any part, as of a mechanism, resembling a fin. Metallurgy. a ridge of metal squeezed through the opening between two rolls, dies, or halves of a mold in which a piece is being formed under pressure.