(definition) by Webster 1913 Wed Dec 22 1999 at 0:46:41

Lac"tone (?), n. Chem.

One of a series of organic compounds, regarded as anhydrides of certain hydroxy acids. In general, they are colorless liquids, having a weak aromatic odor. They are so called because the typical lactone is derived from lactic acid.

 

© Webster 1913.

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