foramen rotundum meaning

[Medicine]
n : a circular aperture in the anterior and medial part of the greater wing of the sphenoid that gives passage to the maxillary nerve

Examples

The maxillary nerve, division V 2 of the trigeminal nerve travels through the lower portion of the sinus and exits via the foramen rotundum.
Behind and lateral to the foramen rotundum is the foramen ovale, which transmits the mandibular nerve, the accessory meningeal artery, and the lesser superficial petrosal nerve.
The earliest perfect ring-shaped formation of the foramen spinosum was observed in the eighth month after birth and the latest seven years after birth in a developmental study of the foramen rotundum, foramen ovale and foramen spinosum.