Nearby Words

pectoral fin

pectoral fin

noun
(in fishes) either of a pair of fins usually situated behind the head, one on each side, and corresponding to the forelimbs of higher vertebrates.


Origin:
1760–70
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Pectoral fin is always a great word to know.
So is quincunx. Does it mean:
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
Collins
World English Dictionary
pectoral fin
 
n
either of a pair of fins, situated just behind the head in fishes, that help to control the direction of movement during locomotion

Collins English Dictionary - Complete & Unabridged 10th Edition
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