RhymeZone: dcm definitions

Definitions of DCM:

noun: (cardiology) Initialism of dilated cardiomyopathy.
noun: (diplomacy, countable) Initialism of deputy chief of mission.
noun: (uncountable) Initialism of dichloromethane. [(organic chemistry) The partially halogenated hydrocarbon CH₂Cl₂ widely used as a solvent]

(Definitions from Wiktionary)