foramen magnum

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foramen magnum

n.
The large orifice in the base of the skull through which the spinal cord passes to the cranial cavity and becomes continuous with the medulla oblongata.

[New Latin forāmen magnum : Latin forāmen, opening + Latin magnus, large.]

foramen magnum

n
(Anatomy) the large opening at the base of the skull through which the spinal cord passes
[New Latin: large hole]

fora′men mag′num

(ˈmæg nəm)
n.
the large opening in the base of the skull through which the spinal cord merges with the brain.
[1880–85; < New Latin: literally, large hole]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.foramen magnum - the large opening at the base of the cranium through which the spinal cord passesforamen magnum - the large opening at the base of the cranium through which the spinal cord passes
braincase, brainpan, cranium - the part of the skull that encloses the brain
foramen, hiatus - a natural opening or perforation through a bone or a membranous structure