iguana

1. (zoology) Any member of the genus Iguana.

2. (colloquial) In America and the Pacific, any of several members of the lizard family Iguanidae.Examples: "Marine iguanas line the shores of the islands, and are usually seen sprawled over lava rocks near the sea."colloquial

3. (colloquial) In Africa, any large member of the genus Varanus, especially the aquatic Nile monitor (see leguan).colloquial

4. (Australia, formerly) Any member of the genus Varanus (see goanna).Examples: "The last they had had, was an iguana one of the blacks had brought in; and though he felt disgusted at the idea of eating it, he made up into a kind of stew, and they both enjoyed it immensely."Australia