master of arts in teaching(n = noun.communication) mat - a master's degree in teaching;
is a kind of master's degree

academy of motion picture arts and sciences, academy of television arts and sciences, arts, arts and crafts, associate in arts, bachelor of arts, bachelor of arts in library science, bachelor of arts in nursing, baggage master, ballet master, beaux arts, chess master, dance master, doctor of arts, doctor of fine arts, doctor of musical arts, drill master, fine arts, graphic arts, harbor master, household arts, industrial arts, kong the master, language teaching, liberal arts, master, master bedroom, master class, master copy, master cylinder, master file, master in business, master in business administration, master in public affairs, master key, master of architecture, master of arts, master of arts in library science, master of ceremonies, master of divinity, master of education, master of fine arts, master of laws, master of library science, master of literature, master of science, master of science in engineering, master of theology, master plan, master race, master sergeant, master vibrator, occult arts, old master, past master, performing arts, property master, question master, rattlesnake master, rattlesnake's master, riding master, royal academy of arts, sailing master, teaching, teaching aid, teaching certificate, teaching fellow, teaching method, teaching reading, team teaching