an opening, orifice, or short passage, as in a bone or in the integument of the ovule of a plant.
- fo·ram·i·nal [fuh-ram-uh-nl], /fəˈræm ə nl/, adjective
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How to use foramen in a sentence
It is remarkable that neither of these observers should have noticed the foramen in the testa.
In Eutamias townsendii, however, the infraorbital foramen is rounded as much as in the subgenus Eutamias and in the genus Tamias.Genera and Subgenera of Chipmunks | John A. White
The foramen magnum, occipital condyles, and exoccipitals show no unusual features.
The ductus arteriosus closes up about the same time as the foramen ovale.
This is owing to the foramen ovale being very open and closing slowly.
British Dictionary definitions for foramen
a natural hole, esp one in a bone through which nerves and blood vessels pass
- foraminal (fɒˈræmɪnəl), adjective
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
Scientific definitions for foramen
An opening or short passage, especially in the body.♦ The large opening in the base of the skull through which the spinal cord passes is called the foramen magnum (măg′nəm).♦ The opening in the septum between the right and left atria of the heart, present in the fetus but usually closed soon after birth, is the foramen ovale (ō-văl′ē, -vā′lē, -vä′-).
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.