フィンの定義と意味 | Dictionary.com

FIN Definition & Meaning | Dictionary.com Jump to: fin fin noun 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. fin. fin. abbreviation finance. Fin. Fin. abbreviation Finland. FIN FIN abbreviation Finland (international car registration) Fin Fin abbreviation Finland Synonyms fin 1 American [fin] / fɪn / noun 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. Nautical. a horizontal, often adjustable, winglike appendage to the underwater portion of a hull, as one for controlling the dive of a submarine or for damping the roll of a surface vessel. fin keel . Also called vertical stabilizer . Aeronautics. any of certain small, subsidiary structures on an aircraft, designed to increase directional stability. any of a number of standing ridges on an ordinarily hot object, as a radiator, a cylinder of an internal-combustion engine, etc., intended to maximize heat transfer to the surrounding air by exposing a large surface area. 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. Automotive. an ornamental structure resembling an aeronautical fin that is attached to the body of an automobile, as on each rear fender tail fin. Slang. the arm or hand. Usually fins. flipper . verb (used with object) finned, finning to cut off the fins from (a fish); carve or cut up, as a chub. to provide or equip with a fin or fins. verb (used without object) finned, finning to move the fins; lash the water with the fins, as a whale when dying. fin 2 American [fin] / fɪn / noun Slang. a five-dollar bill. fin. 3 American abbreviation finance. financial. finish. Fin. 4 American abbreviation Finland. Finnish. FIN 1 British abbreviation Finland (international car registration) "Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 fin 2 British / fɪn / noun slang a five-dollar bill "Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 fin 3 British / fɪn / noun 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 US name: vertical stabilizer . a vertical surface to which the rudder is attached, usually placed at the rear of an aeroplane to give stability about the vertical axis a tail surface fixed to a rocket or missile to give stability nautical a fixed or adjustable blade projecting under water from the hull of a vessel to give it stability or control a projecting rib to dissipate heat from the surface of an engine cylinder, motor casing, or radiator (often plural) another name for flipper "Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 verb (tr) to provide with fins (tr) to remove the fins from (a dead fish) (intr) (esp of a whale) to agitate the fins violently in the water "Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Fin 4 British abbreviation Finland Finnish "Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 fin. 5 British abbreviation finance financial "Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 fin Scientific / fĭn / One of the winglike or paddlelike parts of a fish, dolphin, or whale that are used for propelling, steering, and balancing in water. Other Word Forms finless adjective finlike adjective Etymology Origin of fin 1 First recorded before 1000; Middle English, Old English finn; cognate with Dutch vin, Low German finne; akin to Swedish fena; probably akin to Latin pinna ( def. ) ; see also pen 1 ( def. ) Origin of fin 2 First recorded in 1865–70; earlier finnip, finnup, fin(n)if “a five-pound note,” from Yiddish fin(e)f “five,” from Middle High German vumf, vimf; see origin at five Explanation 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. Fish, whales, dolphins, and other aquatic animals have fins on various parts of their bodies. Surfboards often have a rear fin that works in a similar way, helping to keep the board steady and aid in making turns. Ships, cars, and aircraft also have fins that assist with balance. In Old English, it was finn , which probably comes from the Latin pinna , "feather or wing." Keep Reading on Vocabulary.com Vocabulary lists containing fin Marine Biology - Introductory Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide! Marine Biology - Middle School Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use! Marine Biology - High School Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time! Example Sentences Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com. Tide tables have become the stuff of national interest, and rare moments when the exhausted whale has blown water or flapped its fin have warranted breaking news bulletins. From Barron's • Apr. 23, 2026 Dirigiéndose a los asistentes, la editora ejecutiva del Times, Terry Tang, destacó la amplitud de la programación del fin de semana como una oportunidad para conectar y descubrir. From Los Angeles Times • Apr. 19, 2026 The researchers used drones carrying sterile petri dishes to capture droplets from the exhaled breath of humpback, fin and sperm whales, combined with skin biopsies taken from boats. From BBC • Dec. 18, 2025 "With its fin immersed into the cell membrane, it rides along the inner surface and swiftly detoxifies lipid peroxides as it goes." From Science Daily • Dec. 9, 2025 The overall musical effect is cinematic: shock and awe for a fin de siecle generation seeking thrills and spills galore. From "The Story of Music" by Howard Goodall Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023 Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.