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.