protocerebrum

noun
pro·​to·​cerebrum | \ "+ \

Definition of protocerebrum

1 : the first segment of the brain in an insect innervating the compound eyes
2 : the ganglion in a lower crustacean giving rise to the optic nerve

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History and Etymology for protocerebrum

New Latin, from prot- + cerebrum

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Dictionary Entries Near protocerebrum

protocerebral

protocerebrum

proto-Chimu

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Cite this Entry

“Protocerebrum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/protocerebrum. Accessed 29 Jul. 2021.

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