optical activity

noun

Definition of optical activity 

: ability of a chemical substance to rotate the plane of vibration of polarized light to the right or left

First Known Use of optical activity

1877, in the meaning defined above

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The first known use of optical activity was in 1877

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optical activity

noun

Medical Definition of optical activity 

: ability of a chemical substance to rotate the plane of vibration of polarized light to the right or left

More from Merriam-Webster on optical activity

Britannica.com: Encyclopedia article about optical activity

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