Definition of ostracion in English:

ostracion

Pronunciation /ɒˈstreɪsɪɒn/

noun

Zoology
  • A boxfish; (later) specifically one of the genus Ostracion. Now only (in form Ostracion): the genus itself.

    Valid publication of the genus name: Linnaeus Systema Naturae (ed. 10, 1758) I. 330.

Origin

Mid 17th century; earliest use found in Thomas Browne (1605–1682), physician and author. From post-classical Latin ostracion (Gesner 1558) from Hellenistic Greek ὀστράκιον shellfish, in ancient Greek small earthen vessel from ancient Greek ὄστρακον + -ιον, diminutive suffix.