What do a.m. and p.m. stand for?

pelvic fin

(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 of pelvic fin
1905-10 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the web for pelvic fin
  • There is a small triangular projection at the base of the pelvic fin.
  • Hatchery fish were distinguished from naturally produced fish by a pelvic fin clips.
  • Usually a small flap of skin present at the base of each pelvic fin.
  • Scissors were used to collect a genetic sample from the left pelvic fin of all bull trout upon initial capture.
  • pelvic fin buds are visible at the start of notochord flexion, and as growth proceeds one ray of each pair becomes longer.
  • The pelvic fin is partly lifted, the needle placed at the fin base and gently inserted until its tip penetrates the body wall.
British Dictionary definitions for pelvic fin

pelvic fin

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 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source

Word of the Day

Difficulty index for pelvic fin

Few English speakers likely know this word

Word Value for pelvic

Scrabble Words With Friends