horned toad

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. See horned lizard.

GNU Webster's 1913

1. adj. (Zoöl.) any lizard of the genus Phrynosoma, of which nine or ten species are known. These lizards have several hornlike spines on the head, and a broad, flat body, covered with spiny scales. They inhabit the dry, sandy plains from California to Mexico and Texas. Called also horned lizard.

WordNet 3.0

1. n. insectivorous lizard with hornlike spines on the head and spiny scales on the body; of western North America