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n. pl. fo·ram·i·na (-răm′ə-nə) or fo·ra·mens
An opening or orifice, as in a bone or in the covering of the ovule of a plant.

[Latin forāmen, an opening, from forāre, to bore.]

fo·ram′i·nal (-răm′ə-nəl), fo·ram′i·nous (-nəs) adj.


n, pl -ramina (-ˈræmɪnə) or -ramens
(Anatomy) a natural hole, esp one in a bone through which nerves and blood vessels pass
[C17: from Latin, from forāre to bore, pierce]
foraminal adj


(fəˈreɪ mən)

n., pl. -ra•mens, -ram•i•na (-ˈræm ə nə)
a small opening, orifice, or perforation, as in a bone or in the ovule of a plant.
[1665–75; < Latin forāmen hole, opening =forā(re) to bore1, pierce + -men resultative n. suffix]
fo•ram•i•nal (fəˈræm ə nl) adj.


A hole in a bone or between two body cavities.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.foramen - a natural opening or perforation through a bone or a membranous structureforamen - a natural opening or perforation through a bone or a membranous structure
foramen of Monro, interventricular foramen, Monro's foramen - the small opening (on both the right and left sides) that connects the third ventricle in the diencephalon with the lateral ventricle in the cerebral hemisphere
foramen magnum - the large opening at the base of the cranium through which the spinal cord passes
opening, gap - an open or empty space in or between things; "there was a small opening between the trees"; "the explosion made a gap in the wall"
References in periodicals archive ?
However a Bubble Echo done at a later date was indicative of patent foramen ovale.
Mandibular canal (MC) is a bony structure that begins in the mandibular foramen on the medial face of mandible ramus.
In patients in whom PAVM and patent foramen ovale (PFO) coexist, both conditions may be responsible for paradoxical embolism.
An echocardiogram with bubble study confirmed a diagnosis of patent foramen ovale (PFO) with bidirectional flow, a normal ejection fraction, and no evidence of left ventricular or left atrial thrombus.
The foramina diameters and the distance of the foramen to the cementoenamel junction, and to the alveolar bone crest, were measured.
Titled "Another look at the foramen magnum in bipedal mammals," (http://www.
Amac: Bu calismadaki amac morfolojik olarak foramen mentalenin pozisyon tiplerini, varyasyonunu ve asimetrisini arastirmaktir.
A non-contrast head CT was subsequently performed and demonstrated an area of extra-axial hyperdensity marginating the clivus and extending from the most inferiorly visualized aspect of the anterior foramen magnum cephalad towards the left and right cerebel-lopontine angle cisterns (Figures 1,2).
Right intervertebral foramen between fourth and sacralised fifth lumbar vertebra was obstructed to some extent.
Key Words: Endodontics, working length, Electronic Apex Locators, Apical foramen, Dentaport Root ZX.
Altura del foramen infraorbitario (AFI): Distancia minima entre los bordes dorsal y ventral del foramen infraorbitario (Fig.