FORAMINA
FORAMEN
foramen, hiatus
(noun) a natural opening or perforation through a bone or a membranous structure
Source: WordNet® 3.1
Noun
foramina
plural of foramen
Source: Wiktionary
FORAMEN
Fo*ra"men, n.; pl. L. Foramina, E. Foramines. Etym: [L., fr. forare
to bore, pierce.]
Definition: A small opening, perforation, or orifice; a fenestra. Foramen
of Monro (Anat.), the opening from each lateral into the third
ventricle of the brain.
– Foramen of Winslow (Anat.), the opening connecting the sac of the
omentum with the general cavity of the peritoneum.
Source: Webster’s Unabridged Dictionary 1913 Edition