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tricarinate

adjective
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tri·​carinate | \ (ˈ)trī+ \

Definition of tricarinate

: having three ridged keels

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History and Etymology for tricarinate

tri- + carinate

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“Tricarinate.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/tricarinate. Accessed 8 December 2019.

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