Dictionary

optically active

adjective

Definition of OPTICALLY ACTIVE

:  capable of rotating the plane of vibration of polarized light to the right or left —used of compounds, molecules, or atoms

First Known Use of OPTICALLY ACTIVE

1875

optically active

adjective    (Medical Dictionary)

Medical Definition of OPTICALLY ACTIVE

:  capable of rotating the plane of vibration of polarized light to the right or left :  either dextrorotatory or levorotatory—used of compounds, molecules, or atoms

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