Definition of iguana
: any of various large chiefly herbivorous usually green or brownish tropical American lizards (family Iguanidae, the iguana family) that have a serrated dorsal crest and large dewlap; broadly : any of various large lizards
Recent Examples of iguana from the Web
Venter's expedition also took samples from mangrove swamps, iguana nesting areas, and interior lakes.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'iguana'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of iguana
Spanish, from Arawak & Carib iwana
First Known Use: 1555
IGUANA Defined for English Language Learners
Definition of iguana for English Language Learners
: a large lizard that lives in the tropical regions of Central and South America
IGUANA Defined for Kids
Definition of iguana for Students
: a large tropical American lizard with a ridge of tall scales along its back
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