alternating flashing light

alternating flashing light

[′ȯl·tər·nād·iŋ ¦flash·iŋ ′līt]
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A light showing one or more flashes with color variations at regular intervals, the duration of light being less than that of darkness.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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