tail fan

noun

, Zoology.

the fanlike posterior appendage of crayfish and lobsters, consisting of a telson and two uropods, used for rapid backward propulsion.

tail fan

the fanned structure at the hind end of a lobster or related crustacean, formed from the telson and uropods

First recorded in 1890–95

When parked on the ground, the craft’s main rotor can spin while the tail fans are switched off, eliminating a deadly hazard for ground personnel.

I felt myself getting very hot with a heat that a turkey-tail fan could not allay.

She unbent at his courtly, old-fashioned compliments, and I distinctly saw her tap him playfully with her turkey-tail fan.

She was indignantly waving her turkey-tail fan, and such an expression of disgust I have never seen on a human countenance.

The princess stood behind with the peacock-tail fan in her hand.

There is our great elder brother and father, Eagle, he of the floating down and of the terraced tail-fan.

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