plural noun

: an order of primitive Paleozoic ganoid fishes of moderate size superficially resembling modern herrings but having heterocercal tails, the maxilla expanded over the cheek, and a true clavicle in the pectoral girdle

Word History


New Latin, from archi- + -istia (as in Cladistia)

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Dictionary Entries Near Archistia

Cite this Entry

“Archistia.” Dictionary, Merriam-Webster, Accessed 21 Feb. 2024.

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