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A herbivorous hadrosaurid dinosaur of the genus Maiasaura of the Cretaceous Period. Remains of fossilized nests and juveniles suggest that the adults cared for their young.
[New Latin Māiasaura, good mother lizard, genus name : Greek maia, good mother; see mā- in Indo-European roots + New Latin saura, feminine of saurus, lizard (from Greek sauros).]
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.
(Palaeontology) a species of large, herbivorous, duck-billed dinosaur
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
mai·a·sau·ra(mī′ə-sôr′ə) or mai·a·saur (mī′ə-sôr′)
A duck-billed dinosaur of the late Cretaceous Period of North America. Its remains suggest that the adults lived in herds and cared for their young in large nesting sites.
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.