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Definition of Os frontale
1. Noun. The large cranial bone forming the front part of the cranium: includes the upper part of the orbits.
Exact synonyms: Forehead, Frontal Bone
Terms within: Glabella, Mesophyron, Metopion, Ophryon, Frontal Eminence
Generic synonyms: Membrane Bone
Group relationships: Braincase, Brainpan, Cranium
Terms within: Glabella, Mesophyron, Metopion, Ophryon, Frontal Eminence
Generic synonyms: Membrane Bone
Group relationships: Braincase, Brainpan, Cranium
Medical Definition of Os frontale
1. The large single bone forming the forehead and the upper margin and roof of the orbit on either side; it articulates with the parietal, nasal, ethmoid, maxillary, and zygomatic bones, and with the lesser wings of the sphenoid. Synonym: os frontale, coronale. (05 Mar 2000)