tail fin


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Related to tail fin: Pectoral fins, ventral fin

tail fin

also tail·fin  (tāl′fĭn′)
n.
1. A fin at the posterior part of the body of a fish, crustacean, whale, or other aquatic animal.
2. An ornamental projection shaped like a fin on the rear fender of an automobile. Also called fin1.
3. A fin at the tail end of an aerodynamic or hydrodynamic object such as an airplane or surfboard, used to provide directional control or stability.

tail′ fin`


n.
1. the terminal vertical fin of a fish.
2. See under fin 1 (def. 6).
[1675–85]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.tail fin - a stabilizer that is part of the vertical tail structure of an airplanetail fin - a stabilizer that is part of the vertical tail structure of an airplane
stabilizer - airfoil consisting of a device for stabilizing an aircraft
vertical tail - the vertical airfoil in the tail assembly of an aircraft
2.tail fin - one of a pair of decorations projecting above the rear fenders of an automobile
auto, automobile, car, motorcar, machine - a motor vehicle with four wheels; usually propelled by an internal combustion engine; "he needs a car to get to work"
decoration, ornament, ornamentation - something used to beautify
3.tail fin - the tail of fishes and some other aquatic vertebratestail fin - the tail of fishes and some other aquatic vertebrates
fin - organ of locomotion and balance in fishes and some other aquatic animals
heterocercal fin - a tail fin with unequal lobes in which the vertebral column turns upward into the larger lobe as in sharks
homocercal fin - symmetrical tail fin extending beyond the end of the vertebral column as in most bony fishes
fish - any of various mostly cold-blooded aquatic vertebrates usually having scales and breathing through gills; "the shark is a large fish"; "in the living room there was a tank of colorful fish"
References in periodicals archive ?
Divers believe they have spotted flight QZ8501's tail fin, which could hold the plane's black box.
Half a tail fin shot away, to keep on track we couldn't stay Must escape, find our position, making first a good decision Radar, radio out of range, an astro fix would make a change The heavens high could solve our plight Just make the calculation right So from the sky for some came slaughter Unhappiness from every quarter While luckily for us on high we gained our safety from the sky by Charles Kaye
Squadron Leader Jim Turner said: "The Royal Air Force Aerobatic Team, the Red Arrows, are extremely proud of our heritage and we hope that this tail fin design brings with it a sense of pride for both past members of the team and for members of the public to share in.
Upon inspection he identified one of four bolts missing used to attach the tail fin assembly to the missile body.
She added: "It's a momentous year for the Red Arrows as they are celebrating their 50th display season and have recently unveiled a new tail fin design.
The lime green Cassutt Racer was said to be "only slightly damaged", but appeared to have lost its tail fin in photographs.
Officials said a problem with a tail fin caused the missile-like vehicle to fly out of control before the main engine could be ignited, leading researchers to destroy it early.
5 metres, from their current height of nearly 23 metres, to accommodate the larger tail fin of the aircraft.
With a detection range of up to 100km, the device is likely to be fitted on the tail fin of an aircraft.
The search for the black box received a boost earlier on Monday when Brazilian navy divers recovered the tail fin of the Airbus A330 jet.
The discovery of the jetliner's tail fin could offer important clues as to why the Airbus 330 crashed the night of May 31 with 228 people on board, and possibly help pinpoint the location of the flight's "black boxes.
Ichthyostega, which has robust limbs and only a small tail fin, appears to be the more terrestrial of the two.