Try Our Apps


Gobble up these 8 terms for eating


[lak-tohn] /ˈlæk toʊn/
noun, Chemistry.
any of a group of internal esters derived from hydroxy acids.
Origin of lactone
1840-50; lact- + -one
Related forms
[lak-ton-ik] /lækˈtɒn ɪk/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
British Dictionary definitions for lactonic


any of a class of organic compounds formed from hydroxy acids and containing the group -C(CO)OC-, where the carbon atoms are part of a ring
Derived Forms
lactonic (lækˈtɒnɪk) adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
lactonic in Medicine

lactone lac·tone (lāk'tōn')
An anhydride formed by the removal of a water molecule from the hydroxyl and carboxyl radicals of hydroxy acids.

lac·ton'ic (-tŏn'ĭk) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
lactonic in Science
Any of various organic esters derived from organic acids by removal of water. Lactones are formed when the carboxyl (COOH) group of the acid reacts with a hydroxyl (OH) group in the same acid, releasing water and causing the carbon atom to join to the hydroxyl's remaining oxygen atom, forming a ring. Vitamin C, the antibiotic erythromycin, and many commercially important substances are lactones.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Word Value for lactonic

Scrabble Words With Friends

Nearby words for lactonic