therapsid therapist • Therapsida · · · Info · Definitions · Synonyms · Characters · · therapsid · · Text Latin · · Script 9 · · Length Definitions · · · (noun) probably warm-blooded; considered direct ancestor of mammals. Synonyms: protomammal. · · Noun Definition 1 Synonyms · · · protomammal · · Synonym 1 Characters · · a latin small letter a U+0061 d latin small letter d U+0064 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074