[ tahy-tan-uh-sawr, tahyt-n-uh- ]
/ taɪˈtæn əˌsɔr, ˈtaɪt n ə- /


any amphibious plant-eating dinosaur of the genus Titanosaurus, from the Cretaceous Period, having a long, thin neck and a long, whiplike tail.

Origin of titanosaur

From the New Latin word Titanosaurus, dating back to 1890–95. See Titan, -o-, -saur
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for titanosaur


/ (taɪˈtænəˌsɔː) /


any of various herbivorous quadrupedal dinosaurs of the family Titanosauridae, of Jurassic and Cretaceous times: suborder Sauropoda (sauropods)

Word Origin for titanosaur

C19: from New Latin Tītānosaurus, from Greek Titan + -saur
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

Science definitions for titanosaur


[ tī-tănə-sôr′, tītn- ]

Any of various very large sauropod dinosaurs of the group Titanosauria of the Cretaceous Period. The titanosaurs were the last group of sauropods to evolve and probably include the largest sauropods ever (belonging to the genus Argentinosaurus). Some specimens were armored with bony plates.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.