1. Cyclic @[email protected] formed by @[email protected] addition of a hydroxy group to an aldehydic or ketonic carbonyl group. They are thus 1-oxacy-cycloalkan-2-ols or unsaturated analogues, e.g.
  2. [obsolete] This term has also been used for hydroxy @[email protected], but such use is not recommended.
PAC, 1995, 67, 1307. (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1347 [Terms] [Paper]