Synapsid

//sɪˈnapsɪd// adj, noun

Definitions

Adjective
  1. 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. not-comparable

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

Noun
  1. 1
    Any animal (all mammals) of the class Synapsida.
  2. 2
    extinct reptile having a single pair of lateral temporal openings in the skull wordnet

Etymology

Etymology 1

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

Etymology 2

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

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