optical activity


Also found in: Thesaurus, Medical, Legal, Financial, Encyclopedia, Wikipedia.

optical activity

n. Chemistry
A property caused by asymmetric molecular structure that enables a substance to rotate the plane of incident polarized light.

optically active adj.

optical activity

n
(Chemistry) the ability of substances that are optical isomers to rotate the plane of polarization of a transmitted beam of plane-polarized light

op′tical activ′ity


n.
the ability of a substance to rotate the plane of polarization of plane-polarized light.
[1875–80]
Translations
activité optique
References in periodicals archive ?
Optical activity can be generated by two main factors related to the polymer structure.
developed a helical chiral polymer such as polylactic acid with a weight-average molecular weight of 50,000-1,000,000, optical activity, and 20-80% crystallinity, showing enhanced piezoelectricity.
Virtually No Observed Degradation of Electro Optical Activity Demonstrates Commercial Viability For Certain Multi-Billion Dollar Markets
Objective: A novel effect of optical activity of highly rotationally excited non-chiral molecules has been proposed in 2004 by Bunker and Jensen (P.