Definition of pterotic in English:

pterotic

noun

Zoology
  • A bone in the upper posterior part of the skull in many fishes and some other lower vertebrates, often bearing a distinct crest or flange; a corresponding element in the wall of the auditory capsule in some other vertebrate groups.

adjective

Zoology
  • Designating, relating to, or corresponding to this bone or element.

Origin

Mid 19th century; earliest use found in Philosophical Transactions of the Royal Society of London. From ancient Greek πτερόν wing + otic, after e.g. periotic, periotic.

Pronunciation

pterotic

/təˈrɒtɪk//təˈrəʊtɪk/