MAO (monoamine oxidase)

MAO-B (monoamine oxidase-b)

MAOI (monoamine oxidase inhibitor)

MAP (mean arterial pressure)

MAPK (mitogen-activated protein kinase)

MAR (medication administration record)

MAS (macrophage activation syndrome)

MASH (mobile army surgical hospital)

MAST (military anti-shock trousers)

MAT (miller analogies test)