Premaxilla \Pre"max*il"la\, n.; pl. {Premaxill[ae]}. [NL. See
{Pre-}, and {Maxilla}.] (Anat.)
A bone on either side of the middle line between the nose and
mouth, forming the anterior part of each half of the upper
jawbone; the intermaxilla. In man the premaxill[ae] become
united and form the incisor part of the maxillary bone.
[1913 Webster]