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
Words nearby frontal bone
frontage road,
frontal,
frontal area,
frontal artery,
frontal axis,
frontal bone,
frontal cortex,
frontal crest,
frontal cyclone,
frontal groove,
frontal gyrus
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.