HOMEOTHERM /ˈhəʊmi.əʊˌθɜːm/ Scrabble 20 Words With Friends 20 Definition noun an animal that has a body temperature that is relatively constant and independent of the environmental temperature. — synonyms: homoiotherm, homotherm See all 124 words you can make from HOMEOTHERM → 10-letter words Words starting with H Words ending with M ← Unscramble different letters