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
The super-orbital foramina just under the horns, which are marked in most antelope and deer, are very minute in Pantholops.Natural History of the Mammalia of India and Ceylon | Robert A. Sterndale
He regarded them as minute Cephalopods, whose chambers communicated by pores (foramina).
In front of the exoccipital is the large pro-otic pierced by two prominent foramina.
Anteriorly it is pierced by a pair of small foramina through which the ophthalmic branches of the trigeminal nerve pass out.
The foramina lie however very close together and are sometimes confluent.
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.