Definition of orthid in English:

orthid

noun

  • A fossil articulate brachiopod of the genus Orthis, family Orthidae, or order Orthida, of the Palaeozoic era.

adjective

  • Of or relating to the family Orthidae or order Orthida of fossil brachiopods.

Origin

Mid 19th century; earliest use found in Smithsonian Institution Annual Reports. From scientific Latin Orthidae, family name from Orthis, genus name + -idae.

Pronunciation

orthid

/ˈɔːθɪd/