Finned definition | Dictionary.com

finned

[find]

–adjective

having fins.

Origin:
1300–50; ME finnede. See fin, -ed ³

1 [fin]

noun, verb, finned, fin⋅ning.

–noun

1.	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.	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.

3.	Also called vertical stabilizer. Aeronautics. any of certain small, subsidiary structures on an aircraft, designed to increase directional stability.

4.	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.

5.	any part, as of a mechanism, resembling a fin.

6.	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. Compare flash (def. 11).

7.	Automotive. an ornamental structure resembling an aeronautical fin that is attached to the body of an automobile, as on each rear fender (tail fin).

8.	Slang. the arm or hand.

9.	Usually, fins. flipper (def. 2).

–verb (used with object)

10.	to cut off the fins from (a fish); carve or cut up, as a chub.

11.	to provide or equip with a fin or fins.

–verb (used without object)

12.	to move the fins; lash the water with the fins, as a whale when dying.

Origin:
bef. 1000; ME, OE finn; c. D vin, LG finne; akin to Sw fena

Related forms:

finless, adjective

finlike, adjective

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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fin¹ (fĭn)

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.
Something resembling a fin in shape or function, as:
1. A fixed or movable airfoil used to stabilize an aircraft, missile, or projectile in flight.
2. A thin, usually curved projection attached to the rear bottom of a surfboard for stability.
3. A projecting vane used for cooling, as on a radiator or an engine cylinder.
4. See tail fin.
See flipper.

v.   finned, fin·ning, fins

v.   tr.
To equip with fins.
v.   intr.

[Middle English, from Old English finn.]

finned (fĭnd)

adj. Having a fin, fins, or finlike parts. Often used in combination: single-finned; multifinned.

Finned

Finned\, a. Having a fin, or fins, or anything resembling a fin. --Mortimer.

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