foramen magnum

foramen magnum [mag-nuh m] Word Origin noun Anatomy.

1. the large opening in the base of the skull forming the passage from the cranial cavity to the spinal canal.

Origin of foramen magnum 1880–85; New Latin: literally, great hole British Dictionary definitions for foramen magnum foramen magnum noun

1. the large opening at the base of the skull through which the spinal cord passes

Word Origin for foramen magnum New Latin: large hole foramen magnum in Medicine foramen magnum [măg′nəm] n.

1. great foramen