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Webster 1913 Edition

Prefrontal

Pre-fron′tal

,
Adj.
(Anat. & Zool.)
Situated in front of the frontal bone, or the frontal region of the skull; ectethmoid, as a certain bone in the nasal capsule of many animals, and certain scales of reptiles and fishes.
–
Noun.
A prefrontal bone or scale.

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