frontal bone


Definition of frontal bone

: 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 Further evidence for cladogenesis comes from a 3.9m years old frontal bone (part of the forehead) from Ethiopia, discovered in 1981. Hester Hanegraef, Quartz Africa, "The skull of humanity’s oldest known ancestor is changing our understanding of evolution," 7 Sep. 2019 The frontal bone of its skull had a long anterior platform for the nasofrontal sutural surface, meaning the dinosaur had what some might call a duck bill. Kendall Trammell, CNN, "A new dinosaur has been unearthed, and it's the first of its kind," 5 Sep. 2019 CT scan images of the skull roof (frontal bone in pink, parietal in green) a chicken, the birdlike dinosaur Zanabazar, the primitive dinosaur Herrerasaurus, and Proterosuchus. Matt Blitz, Popular Mechanics, "The Real Science of Bringing Back the Dinosaurs," 20 June 2018 Enshrined in the temple are all sorts of relics: a collar and frontal bone of the Buddha, the Celonese Tooth of Kandy, and an emerald Buddha from China. Antonia Neubauer, Town & Country, "How to Plan a Trip to Asia," 5 Oct. 2016 The procedure would have involved temporary surgical removal of part of the frontal bone of the skull and excision of the bone tumor to close the leak that was sending air into the brain. Mark Lieber, CNN, "Doctors find air pocket hidden in man's brain," 13 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'frontal bone.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of frontal bone

1741, in the meaning defined above

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Time Traveler for frontal bone

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The first known use of frontal bone was in 1741

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Cite this Entry

“Frontal bone.” Dictionary, Merriam-Webster, Accessed 28 Oct. 2020.

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More Definitions for frontal bone

frontal bone


Medical Definition of frontal bone

: 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

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