T. rex(redirected from T Rex)
T. rex(tē′ rĕks′)
A very large carnivorous tyrannosaurid dinosaur (Tyrannosaurus rex) of the Cretaceous Period, having a large head and teeth and short forelimbs with two claws. Also called tyrannosaurus.
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.