Ac·​i·​das·​pis | \ ˌa-sə-ˈda-spəs \

Definition of Acidaspis

: a genus of trilobites mostly with long spines found in the Ordovician, Silurian, and Devonian

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First Known Use of Acidaspis

1843, in the meaning defined above

History and Etymology for Acidaspis

New Latin, from Greek akid-, akis + New Latin -aspis

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The first known use of Acidaspis was in 1843

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Cite this Entry

“Acidaspis.” Dictionary, Merriam-Webster, Accessed 29 Oct. 2020.

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