Source : Webster's Revised Unabridged Dictionary (1913)

Bregma \Breg"ma\, n. [Gr. ? the front part of the head: cf. F.
   bregma.] (Anat.)
   The point of junction of the coronal and sagittal sutures of
   the skull.

Source : WordNet®

bregma
     n : the craniometric point at the junction of the sagittal and
         coronal sutures at the top of the cranium
     [also: {bregmata} (pl)]