Foramen
Foramen , noun
[Latin, from forare to bore, pierce.]
A small opening, perforation, or orifice; a fenestra.
Collocations (2)
Foramen of Monro (Anatomy) , the opening from each lateral into the third ventricle of the brain.
Foramen of Winslow (Anatomy) , the opening connecting the sac of the omentum with the general cavity of the peritoneum.