: a genus of small blind Cambrian and Ordovician trilobites that with a number of related forms in which the cephalon and pygidium are almost indistinguishable constitute an order (Agnostida) of highly specialized forms

Word History


borrowed from New Latin, borrowed from Greek ágnōstos "unknown"

First Known Use

1824, in the meaning defined above

Time Traveler
The first known use of Agnostus was in 1824

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Dictionary Entries Near Agnostus

Cite this Entry

“Agnostus.” Dictionary, Merriam-Webster, Accessed 11 Dec. 2023.

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