gelotologist

== English == === Etymology === From Latin zelus (“laughter”). === Noun === gelotologist (plural gelotologists) A person who studies humour and laughter 1994 Paul M. Insel, Core concepts in health, Mayfield Pub. Co., p31 Fry, who calls himself a gelotologist (from the Greek root gelos, meaning laughter), says laughter defuses anger, lifts depression, increases alertness, enhances learning, promotes creativity and cooperation, fosters mental health […]