单词 | coelacanth |
释义 | coelacanth[ see-luh-kanth ] / ˈsi ləˌkænθ / nouna crossopterygian fish, Latimeria chalumnae, thought to have been extinct since the Cretaceous Period but found in 1938 off the coast of southern Africa. Origin of coelacanth1605–15; <New Latin Coelacanthus originally a genus name, equivalent to coel-coel- + Greek -akanthos -spined, -thorned, adj. derivative of ákantha spine, thorn OTHER WORDS FROM coelacanthcoe·la·can·thine [see-luh-kan-thahyn, -thin], /ˌsi ləˈkæn θaɪn, -θɪn/, adjectiveWords nearby coelacanthcoefficient of performance, coefficient of restitution, coefficient of variation, coefficient of viscosity, coel-, coelacanth, coelanaglyphic, -coele, Coelenterata, coelenterate, coelenteron Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for coelacanthBritish Dictionary definitions for coelacanthcoelacanth / (ˈsiːləˌkænθ) / nouna primitive marine bony fish of the genus Latimeria (subclass Crossopterygii), having fleshy limblike pectoral fins and occurring off the coast of E Africa: thought to be extinct until a living specimen was discovered in 1938 Word Origin for coelacanthC19: from New Latin coelacanthus, literally: hollow spine, from coel- + Greek akanthos spine Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Scientific definitions for coelacanthcoelacanth [ sē′lə-kănth′ ] Any of various fishes of the group Coelacanthiformes or Actinistia, having lobed, fleshy fins. Coelacanths are crossopterygians, the ancient group of lobe-finned fishes that gave rise to land vertebrates. They were known only from Paleozoic and Mesozoic fossils until a living species (Latimeria chalumnae) was found in the Indian Ocean in 1938. A second Latimeria species was described in 1999. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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