chameleon vs chamaeleon

chameleon and chamaeleon both are nouns.

Word	Noun	Adjective	Verb	Adverb
chameleon	Yes	No	No	No
chamaeleon	Yes	No	No	No

As nouns, chameleon and chamaeleon are synonyms defined as:

chameleon and chamaeleon: lizard of Africa and Madagascar able to change skin color and having a projectile tongue

chameleon (noun)	chamaeleon (noun)
lizard of Africa and Madagascar able to change skin color and having a projectile tongue	lizard of Africa and Madagascar able to change skin color and having a projectile tongue
a changeable or inconstant person