insula

noun
in·​su·​la | \ ˈin(t)s-(y)ə-lə How to pronounce insula (audio) , ˈin-shə-lə How to pronounce insula (audio) \
plural insulae\ -​ˌlē How to pronounce insulae (audio) , -​ˌlī How to pronounce insulae (audio) \

Medical Definition of insula

: the lobe in the center of the cerebral hemisphere that is situated deeply between the lips of the sylvian fissure

called also central lobe, island of Reil

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