noun, plural foramina [fuh-ram-uh-nuh] .
an opening, orifice, or short passage, as in a bone or in the integument of the ovule of a plant.

1665–75; < Latin forāmen hole, opening, equivalent to forā(re) to bore, pierce + -men resultative noun suffix

foraminal [fuh-ram-uh-nl] , adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
foramen (fɒˈreɪmɛn)
n , pl -ramina, -ramens
a natural hole, esp one in a bone through which nerves and blood vessels pass
[C17: from Latin, from forāre to bore, pierce]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Word Origin & History

pl. foramina, from L. foramen, from forare to pierce (see bore).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

foramen fo·ra·men (fə-rā'mən)
n. pl. fo·ra·mens or fo·ram·i·na (-rām'ə-nə)
An aperture or perforation through a bone or a membranous structure.

fo·ram'i·nal (-rām'ə-nəl) or fo·ram'i·nous (-nəs) adj.

foramina fo·ram·i·na (fə-rām'ə-nə)
A plural of foramen.

The American Heritage® Stedman's Medical Dictionary
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American Heritage
Science Dictionary
foramen   (fə-rā'mən)  Pronunciation Key 
Plural foramina (fə-rām'ə-nə) or foramens
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 (māg'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-vāl'ē, -vā'lē, -vä'-).
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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