mental

Men"tal (?), a. [L. mentum the chin.] Anat.

Of or pertaining to the chin; genian; as, the mental nerve; the mental region.

© Webster 1913.

Men"tal, n. Zool.

A plate or scale covering the mentum or chin of a fish or reptile.

© Webster 1913.

Men"tal, a. [F., fr. L. mentalis, fr. mens, mentis, the mind; akin to E. mind. See Mind.]

Of or pertaining to the mind; intellectual; as, mental faculties; mental operations, conditions, or exercise.

What a mental power This eye shoots forth! Shak.

Mental alienation, insanity. -- Mental arithmetic, the art or practice of solving arithmetical problems by mental processes, unassisted by written figures.

© Webster 1913.