| os frontale | 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) |
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| tuber frontale | The most prominent portion of the frontal bone on either side. Synonym: tuber frontale, eminentia frontalis, frontal tuber. (05 Mar 2000) |
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| foramen frontale | An occasional small opening in the supraorbital margin of the frontal bone medial to the supraorbital foramen. Synonym: foramen frontale. (05 Mar 2000) |