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[lee-vuh-roh-tuh-tawr-ee, -tohr-ee] /ˌli vəˈroʊ təˌtɔr i, -ˌtoʊr i/
adjective, Optics, Chemistry, Biochemistry.
turning to the left, as the rotation to the left of the plane of polarization of light in certain crystals and compounds. Symbol: l-.
Also, levorotary
[lee-vuh-roh-tuh-ree] /ˌli vəˈroʊ tə ri/ (Show IPA)
Origin of levorotatory
First recorded in 1870-75; levo- + rotatory Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for levorotatory
Historical Examples
  • Heinemann shows116 that lactic acid exists in two optical modifications, the levorotatory and dextrorotary acids.

    The Book of Cheese

    Charles Thom and Walter Warner Fisk
  • The gums are translucent, amorphous substances, whose solutions in water are levorotatory.

    The Chemistry of Plant Life Roscoe Wilfred Thatcher
levorotatory in Medicine

levorotatory le·vo·ro·ta·to·ry (lē'və-rō'tə-tôr'ē) or le·vo·ro·ta·ry (-rō'tə-rē)

  1. Turning or rotating the plane of polarization of light to the left.

  2. Of or relating to a chemical solution that rotates such a plane to the left.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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levorotatory in Science
Relating to a substance that causes levorotation.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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