Daily Almanac for
Feb 10, 2010
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ir•ra•di•ate



Pronunciation: (
—v.i-rā'dē-āt";
—adj.i-rā'dē-it, -āt"), [key]
—v., -at•ed, -at•ing,
—adj.

—v.t.
1. to shed rays of light upon; illuminate.
2. to illumine intellectually or spiritually.
3. to brighten as if with light.
4. to radiate (light, illumination, etc.).
5. to heat with radiant energy.
6. to treat by exposure to radiation, as of ultraviolet light.
7. to expose to radiation.

—v.i.
Archaic.
a. to emit rays; shine.
b. to become radiant.

—adj.
irradiated; bright.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

irradiantirradiation
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