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- n. Any of various large lizards of the genus Varanus, native to Africa, Asia and Australia, that are carnivorous.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. any of various large tropical carnivorous lizards of Africa and Asia and Australia; fabled to warn of crocodiles
Sorry, no etymologies found.
Other species of monitor lizard are native to Africa, Asia, and Australia, and a few of those notably Varanus salvator grow big, though not nearly so big as Varanus komodoensis.
By 1889 it harbored not just spiders but butterflies, beetles, flies, and at least a single large monitor lizard of the species Varanus salvator, closely related to the Komodo dragon.