Definition of caudal fin in English:

caudal fin

Syllabification: cau·dal fin

noun

Zoology
  • another term for tail fin.
    More example sentences
    • Three fins in particular are observed to work together in a coordinated way during swimming: the pectoral fin, the caudal fin and the dorsal fin.
    • Another physical characteristic of the brook trout is an adipose fin and a caudal fin that is slightly forked.
    • Around 2.5m in length at a maximum, it is often smaller and easily recognised by its broad head, two large dorsal fins and a caudal fin that represents around one quarter of the whole body length.

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Word of the day coloratura
Pronunciation: ˌkələrəˈto͝orə
noun
elaborate ornamentation of a vocal melody