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horned lizard

noun
  1. an insectivorous iguanid lizard of the genus Phrynosoma, of western North America, having hornlike spines on the head and a flattened body covered with spiny scales.
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Origin of horned lizard

An Americanism dating back to 1805–15
Also called horned toad.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018