fishtail

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fishtail

1. Aeronautics an aeroplane manoeuvre in which the tail is moved from side to side to reduce speed
2. Engineering a nozzle having a long narrow slot at the top, placed over a Bunsen burner to produce a thin fanlike flame
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

fishtail

[′fish‚tāl]
(metallurgy)
Excess metal trailing on the end of a roll forging.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

fishtail

A wedge-shaped piece of wood used as part of the soffit form between tapered end pans in concrete joist construction.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
Although the ultimate cause of the crash has not yet been determined, accident investigators have discovered that the rudder of the jet moved so quickly from side to side that the plane 'fishtailed' and plunged out of control.
Aaron Dixon, 19, died instantly when his car fishtailed head-on into a bus three days after Christmas.
First I got harnessed onto a car that fishtailed down the road and my harness came off, so I nearly died.