Main Entry: fron·tal

Pronunciation: \ˈfrənt-^əl\

Function: adjective

1 : of, relating to, or adjacent to the forehead or the frontal bone
2 : of, relating to, or situated at the front or anteriorly
3 : parallel to the main axis of the body and at right angles to the sagittal plane <a frontal plane>

—fron·tal·ly \-^əl-ē\ adverb