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variants:
or less commonly perforate space
Definition of perforated space
: any of three small areas on the lower surface of the brain that are perforated by many small openings for blood vessels and that are situated two anteriorly at the commencement of the fissure of Sylvius and one posteriorly between the mammillary bodies in front and the cerebral peduncles laterally
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Merriam-Webster unabridgedWords at Play
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