iguana

noun

1. 1

   A green iguana (Iguana iguana), a large tropical American lizard often kept as a pet

2. 2

   In zoology, any member of the genus Iguana

3. 3

   Colloquially, in America and the Pacific, any of several members of the lizard family Iguanidae.

4. 4

   Colloquially, in Africa, any large member of the genus Varanus, especially the aquatic Nile monitor -- see leguan

5. 5

   Colloquially, in Australia, any member of the genus Varanus -- see goanna