bregma

American  

[breg-muh] / ˈbrɛg mə /

noun

Craniometry.

plural

bregmata

1. the junction point of the sagittal and coronal sutures of the skull.

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bregma British  

/ ˈbrɛɡmə /

noun

1. the point on the top of the skull where the coronal and sagittal sutures meet: in infants this corresponds to the anterior fontanelle

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Other Word Forms

• bregmate adjective
• bregmatic adjective

Etymology

Origin of bregma

First recorded in 1570–80; from Greek brégma “front of the head”; akin to brain ( def. )

Example Sentences

A craniotomy was drilled with a diameter of approximately 4 mm with the centre 0.5 mm behind and 3 mm to the right of the bregma over the sensory barrel cortex region.

From Nature • Apr. 4, 2014

From the point where the anomalous sutures leave the coronal suture, to the bregma, the distance on the left is 44 mm., on the right 42 mm.

From A Bilateral Division of the Parietal Bone in a Chimpanzee; with a Special Reference to the Oblique Sutures in the Parietal by Hrdlička, Aleš

Among the abnormalities were oxycephaly, platycephaly, stenocephaly, plagiocephaly, and heads with marked depression either at the bregma or the lambda.

From Degeneracy Its Causes, Signs and Results by Talbot, Eugene S.

The head consists of the calvaria, or part covered with hair, which is divided into three regions, the bregma or fore part, the crown, and the occiput.

From Lives of Eminent Zoologists, from Aristotle to Linnæus with Introductory remarks on the Study of Natural History by MacGillivray, William

Their upper lines or boundaries touch each other over a part of the sagittal suture, a little back of the bregma; while the lower lines approach to within 6 mm. of the sagittal suture.

From A Bilateral Division of the Parietal Bone in a Chimpanzee; with a Special Reference to the Oblique Sutures in the Parietal by Hrdlička, Aleš