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a suffix used in the names of ketones and analogous chemical compounds:
lactone; quinone.
Origin of -one
perhaps < Greek -ōnē feminine patronymic Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for -one


indicating that a chemical compound is a ketone: acetone
Word Origin
arbitrarily from Greek -ōnē, feminine patronymic suffix, but perhaps influenced by -one in ozone
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
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Word Origin and History for -one

chemical suffix, from Greek -one, female patronymic (cf. anemone, "daughter of the wind" anemos); in chemical use denoting a "weaker" derivative. Its use in forming acetone (1830s) gave rise to the specialized chemical sense.

Online Etymology Dictionary, © 2010 Douglas Harper
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-one in Medicine

-one suff.

  1. A ketone: acetone.

  2. A compound that contains oxygen, especially in a carbonyl radical: lactone.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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-one in Science
A suffix used to form the names of chemical compounds containing an oxygen atom attached to a carbon atom, such as acetone.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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