iguana

noun5

1. •
   A green iguana (Iguana iguana), a large tropical American lizard often kept as a pet.

   • The problem with keeping the green iguana as a pet is that they are often misfed. For example, some will feed them meat or meat-based foods […] — 2015
2. •
   Any member of the genus Iguana.
3. •
   In America and the Pacific, any of several members of the lizard family Iguanidae.

   • Marine iguanas line the shores of the islands, and are usually seen sprawled over lava rocks near the sea. — 1991
4. •
   (Australia) Any member of the genus Varanus (see goanna).

   • 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. — 1887
5. •
   (informal) In Africa, any large member of the genus Varanus, especially the aquatic Nile monitor (see leguan).