frontala.[Cf. F. frontal.] (Anat.) Belonging to the front part; being in front()n.[F. frontal, fronteau, OF. Frontel, frontal, L. frontale an ornament for the forehead, frontlet. See Front.]1. (Mil.) Something worn on the forehead or face; a frontlet()()2. (Arch.) A little pediment over a door or window.()3. (Eccl.) 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.()4. (Med.) A medicament or application for the forehead.(Quincy.)5. (Anat.) The frontal bone, or one of the two frontal bones, of the cranium.()Frontal hammer or Frontal helve, a forge hammer lifted by a cam, acting upon a tongue immediately in front of the hammer head. Raymond.()a. Growing broader and broader, as a leaf; truncate.()