- any of the several large monitor lizards of the family Varanidae, of Australia, especially Varanus varius and V. giganteus, both sometimes growing to 6 feet (1.8 meters).
Origin of goanna
First recorded in 1795–1805; aphetic form of iguana
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for goanna
The monitor is popularly known as the goanna, a name derived from the iguana, an entirely different animal.
- any of various Australian monitor lizards
- Australian slang a piano
C19: sense 1 changed from iguana; sense 2 from rhyming slang pianna