Freebase(2.00 / 1 vote)Rate this definition: Proletariat. The proletariat is a term used to describe the class of wage-earners in a capitalist society whose only possession of significant material value is their labor; a member of such a class is a proletarian.
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Double Doors: A pair of doors that meet in the middle of the door frame when closed. Door Closer: A mechanical device that closes a door, in general after someone opens it, or after it was automatically opened.