three or more atoms linked together to form a ring or cycle and represented accordingly by its structural formula.
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- closed anesthesia,
- closed book,
- closed book, a,
- closed chain compound,
- closed chest massage,
- closed circuit,
- closed circuit method,
- closed comedo
Compare open chain.
Origin of closed chain
First recorded in 1900–05
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
chem another name for ring 1 (def. 18)
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
[ klōsd ]
An arrangement of atoms of the same type that forms a ring. Benzene and naphthalene are closed-chain compounds.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.