caudal fin — the tail fin, aiding movement. Also called the uropterygium. The fin at the posterior end of the vertebral column (but in Centriscidae the hind end of the body rotates so that the caudal fin is ventral, and in some Trachipteridae the upper lobe… … Dictionary of ichthyology
caudal fin — noun the tail of fishes and some other aquatic vertebrates • Syn: ↑tail fin • Hypernyms: ↑fin • Hyponyms: ↑heterocercal fin, ↑homocercal fin • Part Holonyms: ↑ … Useful english dictionary
caudal fin — the terminal vertical fin of a fish. Also called tail fin. See diag. under fish. * * * … Universalium
caudal fin — noun Zoology another term for tail fin … English new terms dictionary
caudal fin — noun The tailfin of a fish and other aquatic vertebrates … Wiktionary
caudal fin — Hi u … English-Hawaiian dictionary
caudal fin ray count — usually only the principal or main rays are counted, the tiny rudimentary, often procurrent rays are not included. In fishes with branched rays, the principal count is the number of branched rays plus two. These rays are usually markedly larger… … Dictionary of ichthyology
Caudal — Cau dal, a. [L. Cauda tail. Cf. {Coward}.] Of the nature of, or pertaining to, a tail; having a tail like appendage. [1913 Webster] The male widow bird, remarkable for his caudal plumes. Darwin. [1913 Webster] {Caudal fin} (Zo[ o]l.), the… … The Collaborative International Dictionary of English
Fin — Fin, n.[OE. finne, fin, AS. finn; akin to D. vin, G. & Dan. finne, Sw. fena, L. pinna, penna, a wing, feather. Cf. {pen} a feather.] 1. (Zo[ o]l.) An organ of a fish, consisting of a membrane supported by rays, or little bony or cartilaginous… … The Collaborative International Dictionary of English
Fin ray — Fin Fin, n.[OE. finne, fin, AS. finn; akin to D. vin, G. & Dan. finne, Sw. fena, L. pinna, penna, a wing, feather. Cf. {pen} a feather.] 1. (Zo[ o]l.) An organ of a fish, consisting of a membrane supported by rays, or little bony or cartilaginous … The Collaborative International Dictionary of English