n.
Any of several lizards of the genus Phrynosoma of western North America and Central America, having hornlike projections on the head, a spiny flattened body, and a short tail. Also called horned toad.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.