chimney pot
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chimney pot
n.
A short, usually earthenware pipe placed on the top of a chimney to improve the draft.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
chim′ney pot`
n.
an earthenware or metal pipe atop a chimney, esp. to increase the draft and disperse smoke.
[1820–30]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.