单词 | crossopterygian |
释义 | crossopterygian[ kro-sop-tuh-rij-ee-uhn ] / krɒˌsɒp təˈrɪdʒ i ən / nounany fish of the group Crossopterygii, extinct except for the coelacanth, regarded as being ancestral to amphibians and other land vertebrates. adjectivepertaining to or resembling a crossopterygian. Origin of crossopterygian1860–65; <New Latin Crossopterygi(i) group name (<Greek kross(oí) tassels, fringe + -o--o- + pterýgi(on) little wing or fin, equivalent to pteryg- (stem of pterýx) wing, fin + -ion diminutive suffix) + -an Words nearby crossopterygianCross of Gold speech, cross of Lorraine, Cross of Valour, cross one's fingers, cross one's mind, crossopterygian, cross-out, crossover, crossover distortion, crossover network, crossover value Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for crossopterygianBritish Dictionary definitions for crossopterygiancrossopterygian / (krɒˌsɒptəˈrɪdʒɪən) / nounany bony fish of the subclass Crossopterygii, having fleshy limblike pectoral fins. The group, now mostly extinct, contains the ancestors of the amphibiansSee also coelacanth adjectiveof, relating to, or belonging to the Crossopterygii Word Origin for crossopterygianC19: from New Latin Crossopterygiī, from Greek krossoi fringe, tassels + pterugion a little wing, from pterux wing 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 crossopterygiancrossopterygian [ krŏ-sŏp′tə-rĭj′ē-ən ] Any of a mostly extinct group of lobe-finned fishes of the order Crossopterygii, whose only living member is the coelacanth. One group of crossopterygians is thought to have evolved into terrestrial vertebrates beginning in the Devonian Period. See more at coelacanth. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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