synapsidとは 意味・読み方・使い方

発音

• (英国発音) IPA: /sɪˈnapsɪd/

形容詞

synapsid (not comparable)

1. 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.
   • 1999, Matt Ridley, Genome, Harper Perennial, published 2000, page 26:

     We are synapsid tetrapods, a group of reptiles that almost went extinct 200 million years ago in competition with the better-designed dinosaurs.

名詞

synapsid (plural synapsids)

1. Any animal (all mammals) of the class Synapsida.

同意語

• mammal-like reptile (dated)
• stem mammal