Synapsidとは 意味・読み方・使い方

語源

From translingual Synapsida, from syn- + Ancient Greek ἁψίς (hapsís, “arch”).

発音

• (英国発音) IPA^(key): /sɪˈnapsɪd/

形容詞

synapsid (comparative more synapsid, superlative most synapsid)

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 2000, p. 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 (複数形 synapsids)

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

同意語

• mammal-like reptile (dated)
• stem mammal