When it comes to synonyms for the term "American tropical lizard," there are a few different options to choose from. One possibility is to use the term "Neotropical lizard," which refers to lizards found in the Neotropical region of Central and South America. Another alternative is to specify the type of lizard in question, such as an Anole or a Chameleon. Additionally, you could broaden the term to encompass all types of tropical reptiles, using phrases like "tropical reptile" or "tropical lizard species." Ultimately, the best synonym for "American tropical lizard" will depend on the specific context and the speaker's intended meaning.