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Dictionary


pho•top•a•thy



Pronunciation: (fō-top'u-thē), [key]
n.
1. movement of an organism in response to the intensity of light, esp. away from the source of light.
2. any condition or disease produced by the effect of light, esp. in excessive amounts.

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

photooxidationphotoperiod

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