foramen magnum

[ mag-nuhm ]

nounAnatomy.
  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

1
1880–85; <New Latin: literally, great hole

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How to use foramen magnum in a sentence

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

Origin of foramen magnum

1
New Latin: large hole

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012