Nearby Words

pelvic fin

pelvic fin

noun
(in fishes) either of a pair of fins on the lower surface of the body, corresponding to the hind limbs of a land vertebrate; ventral fin.

Origin:
1905–10
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Pelvic fin is always a great word to know.
So is quincunx. Does it mean:
a fool or simpleton; ninny.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
Collins
World English Dictionary
pelvic fin
 
n
either of a pair of fins attached to the pelvic girdle of fishes that help to control the direction of movement during locomotion

Collins English Dictionary - Complete & Unabridged 10th Edition
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