mental (Adjective) — Involving the mind or an intellectual process. ex. "mental images of happy times" ex. "mental calculations" ex. "in a terrible mental state" ex. "mental suffering" ex. "free from mental defects"
mental (Adjective) — Of or relating to the mind. ex. "mental powers" ex. "mental development" ex. "mental hygiene"
mental (Adjective) — (biology) of or relating to the chin- or liplike structure in insects and certain mollusks.
mental (Adjective) — Of or relating to the chin or median part of the lower jaw.
mental (Adjective) — Affected by a disorder of the mind. ex. "a mental patient" ex. "mental illness"