Webster's Revised Unabridged Dictionary · 1913

Self-contained

Self-contained , adjective

1.
Having self-control; reserved; uncommunicative; wholly engrossed in one's self.
2.
(Machinery) Having all the essential working parts connected by a bedplate or framework, or contained in a case, etc., so that mutual relations of the parts do not depend upon fastening outside of the machine itself.
Collocations (1)
Self-contained steam engine , (a) A steam engine having both bearings for the crank shaft attached to the frame of the engine (b) A steam engine and boiler combined and fastened together; a portable steam engine.