Orthis

noun
Or·​this | \-ə̇s\

Definition of Orthis 

: a genus (the type of the family Orthidae) of articulate brachiopods abundant in the Paleozoic

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History and Etymology for Orthis

New Latin, from Greek orthos straight; from the valves being hinged along a straight line

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Dictionary Entries near Orthis

orthic

orthicon

orthid

Orthis

orthite

ortho

orthoarsenate

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