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macrolide in Science
  1. Any of a class of organic compounds containing a large lactone ring made up of twelve or more members.

  2. Any of a class of antibiotics having a macrolide ring structure linked to one or more sugars. Macrolides are produced by actinomycete bacteria of the genus Streptomyces and act by inhibiting protein synthesis. Erythromycin is a macrolide.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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