noun Ac·i·das·pis \ˌa-sə-ˈda-spəs\

Definition of Acidaspis

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

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Origin and Etymology of acidaspis

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

First Known Use: 1843

Seen and Heard

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to cast off or become cast off

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