You know what it looks like… but what is it called?
TAKE THE QUIZdentate fissure
noun
variants
or dentate sulcus
: a fissure of the mesial surface of each cerebral hemisphere extending from behind the posterior end of the corpus callosum forward and downward to the recurved part of the hippocampal convolution
called also hippocampal fissure
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Merriam-Webster unabridged
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