mentala.[L. mentum the chin.] (Anat.) Of or pertaining to the chin; genian; as, the mental nerve; the mental region.()n. (Zol.) A plate or scale covering the mentum or chin of a fish or reptile.()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.()