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n. ( pl.fossae) a depression or hollow. The cubital fossa is the triangular hollow at the front of the elbow joint; the iliac fossa is the depression in the inner surface of the ilium; the pituitary fossa is the hollow in the sphenoid bone in which the pituitary gland is situated; a tooth fossa is a pit in the enamel on the surface of a tooth.

Subjects: Medicine and Health.

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