colliculus

noun
col·​lic·​u·​lus | \ kə-ˈlik-yə-ləs How to pronounce colliculus (audio) \
plural colliculi\ -​ˌlī, -​lē How to pronounce colliculi (audio) \

Medical Definition of colliculus

: an anatomical prominence especially : any of the four prominences constituting the corpora quadrigemina — see inferior colliculus, superior colliculus

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of or relating to a parable or parabola

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