anapsid anapophysis • Anapsida · · · Info · Definitions · Synonyms · Antonyms · Characters · · anapsid · · Text Latin · · Script 7 · · Length Definitions · · · (noun) primitive reptile having no opening in the temporal region of the skull; all extinct except turtles. Synonyms: anapsid reptile. · · Noun Definition 1 Synonyms · · · anapsid reptile · · Synonym 1 Antonyms · · · diapsid · · Antonym 0 diapsid reptile · · Antonym 1 Characters · · a latin small letter a U+0061 d latin small letter d U+0064 i latin small letter i U+0069 n latin small letter n U+006E p latin small letter p U+0070 s latin small letter s U+0073