agnostid

adjective

ag·​nos·​tid

ag-ˈnä-stəd

: of or belonging to the genus Agnostus

Word History

Etymology

borrowed from New Latin Agnostida, order name, or Agnostidae, family name, from Agnostus agnostus + -ida, -idae -ida , -idae

First Known Use

1919, in the meaning defined above

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