Mental, a.
Etymology: [L. mentum the chin.]
(Anat.)
Of or pertaining to the chin; genian; as, the mental nerve; the mental region.
2 other Webster entries under this spelling
Mental, n. (Zoöl.)
A plate or scale covering the mentum or chin of a fish or reptile.
Mental, a.
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.
Shades of meaning
Fernald lists mental only as an antonym, under physical.
He lists it without comment; the entries above explain its neighbors.
Synonyms
none given