Definitions for optical activity
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Random House Webster's College Dictionary
op′tical activ′ity(n.)
the ability of a substance to rotate the plane of polarization of plane-polarized light.
Category: Chemistry
Origin of optical activity:
1875–80
Wiktionary
optical activity(Noun)
a property caused by asymmetrical molecular or crystal structure that enables a compound or crystal to rotate the plane of incident polarized light
optical activity(Noun)
A measure of the amount of optical rotation produced by a standard amount of a substance
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