synapsid

Meanings

Adjective

• Pertaining to the class Synapsida, of animals which have an opening low in the skull roof behind each eye, leaving a bony arch beneath each.

Noun

• Any animal (including all mammals) of the class Synapsida.

Related

Similar words

• mammal-like reptile
• stem mammal

Origin

• From Translingual Synapsida, from syn- + Ancient Greek ἁψίς ("arch").