ichthyosaur

ich·thy·o·saur

 (ĭk′thē-ə-sôr′)

n.

Any of various extinct marine reptiles of the group Ichthyosauria or Ichthyopterygia of the Mesozoic Era, having a long flexible body with fins and an elongated toothed snout.

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[From New Latin Ichthyosaurus, type genus of the group : Greek ikhthuo-, ichthyo- + Greek sauros, lizard.]

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

ichthyosaur

(ˈɪkθɪəˌsɔː) or

ichthyosaurus

n, pl -saurs, -sauruses or -sauri (-ˈsɔːraɪ)

(Palaeontology) any extinct marine Mesozoic reptile of the order Ichthyosauria, which had a porpoise-like body with dorsal and tail fins and paddle-like limbs. See also plesiosaur

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

ich•thy•o•saur

(ˈɪk θi əˌsɔr)

n.

any large fishlike reptile of the extinct order Ichthyosauria, having four flippers and a prominent caudal fin.

[1820–30; < New Latin]

ich`thy•o•sau′ri•an, adj., n.

Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

ich·thy·o·saur

(ĭk′thē-ə-sôr′)

Any of various extinct sea reptiles of the Mesozoic Era having a long beak, four flippers, a dolphin-like body, and a tail with a large fin.

The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Thesaurus

Noun

1.

ichthyosaur - any of several marine reptiles of the Mesozoic having a body like a porpoise with dorsal and tail fins and paddle-shaped limbs archosaur, archosaurian, archosaurian reptile - extinct reptiles including: dinosaurs; plesiosaurs; pterosaurs; ichthyosaurs; thecodonts Ichthyosauria, order Ichthyosauria - extinct marine reptiles: ichthyosaurs ichthyosaurus - ichthyosaurs of the Jurassic stenopterygius, Stenopterygius quadrisicissus - an ichthyosaur of the genus Stenopterygius

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