‖n.; pl. L. Foramina E. Foramines [ L., fr. forare to bore, pierce. ] A small opening, perforation, or orifice; a fenestra. [ 1913 Webster ]
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. [ 1913 Webster ]