/ Dictionary / Index I iguana: Meaning and Definition of Find definitions for: i•gua•na Pronunciation: (i-gwä'nu), [key] — n. a large, arboreal lizard, Iguana iguana, native to Central and South America, having stout legs and a crest of spines from neck to tail. any of various related lizards of the genera Iguana, Ctenosaura, Conolophus, and Amblyrhynchus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: iguana (Thesaurus) Igraine iguanid Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language