- homocercal fin
- nounsymmetrical tail fin extending beyond the end of the vertebral column as in most bony fishes• Ant: ↑heterocercal fin• Hypernyms: ↑tail fin, ↑caudal fin
Useful english dictionary. 2012.
homocercal fin
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homocercal — [hō΄mō sʉr′kəl, häm΄ōsʉr′kəl] adj. [< HOMO + Gr kerkos, a tail + AL] designating, of, or having a tail fin in which the upper and lower lobes are symmetrical and in which the spine is shortened and ends at or near the center of the base, as in … English World dictionary
homocercal — adjective Date: 1838 1. of a fish tail fin having the upper and lower lobes approximately symmetrical and the vertebral column ending at or near the middle of the base 2. having or relating to a homocercal tail fin … New Collegiate Dictionary
homocercal — type of tail fin in which the vertebrae generally turn upward at the hind end of the column, but which is externally symmetrical. The fin rays of the caudal are supported by hypaxial elements. Found in most Teleostei … Dictionary of ichthyology
homocercal — /hoʊməˈsɜkəl/ (say hohmuh serkuhl), /hɒmə / (say homuh ) adjective 1. having the tail or the caudal fin symmetrical as to its upper and under halves. 2. denoting such a tail or caudal fin. Compare heterocercal. {homo + Greek kerkos tail + al1} …
tail fin — noun 1. a stabilizer that is part of the vertical tail structure of an airplane • Syn: ↑vertical stabilizer, ↑vertical stabiliser, ↑vertical fin, ↑tailfin • Hypernyms: ↑stabilizer • Part Holonyms: ↑ … Useful english dictionary
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
heterocercal fin — noun a tail fin with unequal lobes in which the vertebral column turns upward into the larger lobe as in sharks • Ant: ↑homocercal fin • Hypernyms: ↑tail fin, ↑caudal fin … Useful english dictionary
fish — fishless, adj. /fish/, n., pl. (esp. collectively) fish, (esp. referring to two or more kinds or species) fishes, v. n. 1. any of various cold blooded, aquatic vertebrates, having gills, commonly fins, and typically an elongated body covered with … Universalium
Fish — /fish/, n. Hamilton, 1808 93, U.S. statesman: secretary of state 1869 77. * * * I Any of more than 24,000 species of cold blooded vertebrates found worldwide in fresh and salt water. Living species range from the primitive lampreys and hagfishes… … Universalium
Fish anatomy — The anatomy of fish is primarily governed by the physical characteristics of water, which is much denser than air, holds a relatively small amount of dissolved oxygen, and absorbs light more than air does. Body (1) operculum (gill cover), (2)… … Wikipedia
