- an opening, orifice, or short passage, as in a bone or in the integument of the ovule of a plant.
Origin of foramen
Related Words for foramendent, tunnel, void, crater, pocket, window, gap, pit, break, cut, space, mouth, crack, orifice, opening, vesicle, outlet, foramen, stoma, vent
Examples from the Web for foramen
Historical Examples of foramen
No foramen between third and fourth trochleae of tarso-metatarsus.Extinct Birds
To this they are indebted for their name Foraminifera, from foramen, a hole.The Ocean World:
The closure of the foramen is brought about by adhesion of the two septa.
The chalaza is at the insertion or base, the foramen or orifice is at the apex.
Micropyle, answering to the Foramen or orifice of the ovule.
- a natural hole, esp one in a bone through which nerves and blood vessels pass
Word Origin for foramen
plural foramina, 1670s, from Latin foramen "hole, opening, aperture, orifice," from forare "to pierce" (see bore (v.)).
- An aperture or perforation through a bone or a membranous structure.
- 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′-).