frontal bone


noun Anatomy.

a broad membrane bone of the skull, forming the forehead and the upper portion of each orbit.

Origin of frontal bone

First recorded in 1735–45

British Dictionary definitions for frontal bone

frontal bone

noun

the bone forming the forehead and the upper parts of the orbits. It contains several air spaces

Medical definitions for frontal bone

frontal bone

n.

A cranial bone consisting of a vertical portion corresponding to the forehead and a horizontal portion that forms the roofs of the orbital and nasal cavities.