caudal keel

名词 n.
中文释义

英文释义

名词 n.
  1. A lateral ridge found just anterior to each side of the tail fin on the caudal peduncle of some types of fast-swimming fish. The keels improve the stability of the fish's attitude at speed in the water, and strengthen the support of the caudal fin.

词形变化

caudal keels plural
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