A Middle English form of mo.n. A shorter or childish form of mama.In music, but: used especially in the phrase ma non troppo, but not too much, to limit various indications of musical tempo and style, as allegro ma non troppo, quick, but not too much so, etc.n. A sling used by Polynesian islanders, made from finely braided fibers of cocoanut-husk or of similar material.n. An abbreviation of Master of Applied Science.