Caudal \Cau"dal\, a. [L. Cauda tail. Cf. Coward.]

Of the nature of, or pertaining to, a tail; having a tail-like appendage.

The male widow-bird, remarkable for his caudal plumes. --Darwin.

Caudal fin (Zo["o]l.), the terminal fin (or ``tail'') of a fish.

Source: Webster's Revised Unabridged Dictionary (1913)