a broad membrane bone of the skull, forming the forehead and the upper portion of each orbit.
the bone forming the forehead and the upper parts of the orbits. It contains several air spaces
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.
- Frontal cortex
frontal cortex n. The cortex of the frontal lobe of the cerebral hemisphere. Also called frontal area, prefrontal area.
- Frontal crest
frontal crest n. A ridge arising at the termination of the sagittal sulcus on the cerebral surface of the frontal bone and ending at the foramen cecum.
noun 1. any extratropical cyclone associated with a front: the most common cyclonic storm.
- Frontal groove
frontal groove n. Any of the three frontal sulci.