petrosa

noun
pe·​tro·​sa | \ pə̇‧ˈtrōsə \
plural petrosae\ -​ōˌsē , -​ˌsī \

Definition of petrosa

: the petrous part of the temporal bone

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History and Etymology for petrosa

New Latin, from Latin, feminine of petrosus rocky

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Cite this Entry

“Petrosa.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/petrosa. Accessed 25 Oct. 2021.

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