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hyolithid

[ hahy-ol-i-thid ]

noun

  1. any invertebrate of the extinct genus Hyolithes, most common in the Cambrian Period, having a limy, univalve shell, and thought to be related to the pteropods.


adjective

  1. belonging or pertaining to Hyolithes.
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Word History and Origins

Origin of hyolithid1

< New Latin Hyolith ( es ) ( hyoid, -lith ) + -id 2

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hyoidhyoscine