high-pressure mercury-vapor lamp
high-pressure mercury-vapor lamp
[′hī ¦presh·ər ′mər·kyə·rē ¦vā·pər ′lamp] (electronics)
A discharge tube containing an inert gas and a small quantity of liquid mercury; the initial glow discharge through the gas heats and vaporizes the mercury, after which the discharge through mercury vapor produces an intensely brilliant light.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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