frontal bone

noun

: a bone that forms the forehead and roofs over most of the orbits and nasal cavity and that at birth consists of two halves separated by a suture

Examples of frontal bone in a Sentence

Recent Examples on the Web

The frontal bone is remarkably slender in shape, lacking robust muscle attachments and large bony protrusions. —Ryan McRae, Smithsonian Magazine, 28 Dec. 2023

The newest piece of evidence Longrich unearthed was a fossil frontal bone gathering dust at the University of California Museum of Paleontology. —Eric Lagatta, USA TODAY, 4 Jan. 2024

The fossils include a partial frontal bone, including brow ridge, from the cranium, and the shaft of a shin bone, from Tam Pà Ling, a cave in northern Laos. —Ryan McRae, Smithsonian Magazine, 28 Dec. 2023

The bones of both brothers showed evidence of developmental anomalies that were more severe in Individual 1, who had a fourth molar and two frontal bones that had not fully fused (metopic suture). —Jennifer Ouellette, Ars Technica, 27 Feb. 2023

Based on these techniques, the researchers concluded the human frontal bone and tibia were buried in Tam Pà Ling sometime between 86,000 and 68,000 years ago. —Bymichael Price, science.org, 13 June 2023

Most notably, Individual 1 had a small hole—about 32x31 mm at its widest point, formed by a series of intersecting notches—in his skull's frontal bone where a piece of the skull had been removed. —Jennifer Ouellette, Ars Technica, 27 Feb. 2023

The ancient surgeon then removed a 1.2-inch-square piece of the skull’s frontal bone, apparently by making a series of parallel, groovelike cuts and later prying loose pieces of skull away, which were found among the skeletal remains. —Brian Handwerk, Smithsonian Magazine, 22 Feb. 2023

Saget had several blunt force injuries of the head, according to the medical examiner's autopsy report obtained by ABC News, including a fracture at the base of his skull and fractures involving the frontal bone. —Meredith Deliso, ABC News, 15 Feb. 2022

Word History

First Known Use

1657, in the meaning defined above

Rhymes for frontal bone

• acetone
• anglophone
• baritone
• bourguignon
• buspirone
• chaperon
• chaperone
• cobblestone
• collarbone
• cornerstone
• cortisone
• dictaphone

Medical Definition

frontal bone

noun

: a bone that forms the forehead and roofs over most of the orbits and nasal cavity and that at birth consists of two halves separated by a suture

also : either of the two halves especially in a vertebrate in which they do not unite to form a single bone