• noun
• synonym
• antonym

• caudal fin (noun)
  1. the tail of fishes and some other aquatic vertebrates
• dorsal fin (noun)
  1. unpaired median fin on the backs of fishes and some other aquatic vertebrates that help to maintain balance
• fin de siècle (adjective)
  1. typical of the end of the 19th century, especially its art, literature, and attitudes
• fin keel (noun)
  1. a metal plate projecting from the keel of a shallow vessel to give it greater lateral stability
• fin whale (noun)
  1. large flat-headed whalebone whale having deep furrows along the throat; of Atlantic and Pacific
• heterocercal fin (noun)
  1. a tail fin with unequal lobes in which the vertebral column turns upward into the larger lobe as in sharks
• homocercal fin (noun)
  1. symmetrical tail fin extending beyond the end of the vertebral column as in most bony fishes
• long-fin tunny (noun)
  1. large pelagic tuna the source of most canned tuna; reaches 93 pounds and has long pectoral fins; found worldwide in tropical and temperate waters
• pectoral fin (noun)
  1. either of a pair of fins situated just behind the head in fishes that help control the direction of movement
• pelvic fin (noun)
  1. either of a pair of fins attached to the pelvic girdle in fishes that help control the direction of movement; correspond to hind limbs of a land vertebrate
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