Therapsida therapsid • therapy · · · Info · Definitions · Characters · · Therapsida · · Text Latin · · Script 10 · · Length Definitions · · · (noun) extinct mammal-like reptiles found inhabiting all continents from the mid Permian to late Triassic. Synonyms: order Therapsida. · · Noun Definition 1 Characters · · T latin capital letter t U+0054 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