| The Columbia Encyclopedia, Sixth Edition. 2001-07. |
| 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 Encyclopedia, Sixth Edition. Copyright © 2007 Columbia University Press. |
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