Frontal /(?)/

Fron·tal

Frontal

a.
  1. Belonging to the front part; being in front (Anat.)

Frontal

n.
  1. Something worn on the forehead or face; a frontlet (Mil.)
  2. A little pediment over a door or window. (Arch.)
  3. A movable, decorative member in metal, carved wood, or, commonly, in rich stuff or in embroidery, covering the front of the altar. Frontals are usually changed according to the different ceremonies. (Eccl.)
  4. A medicament or application for the forehead. (Med.) [Obs.]
  5. The frontal bone, or one of the two frontal bones, of the cranium. (Anat.)

Phrases & Compounds
Frontal hammer
a forge hammer lifted by a cam, acting upon a “tongue” immediately in front of the hammer head.