Silver Spring, uninc. city (1990 pop. 76,046), Montgomery co., W central Md., a residential suburb of Washington, D.C. It is a major suburban office center and has a large naval ordnance laboratory, several research laboratories (for the development of defense materials and of electronic and prosthetic equipment), and a plant that makes precision instruments.
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.