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1. Acquired from or through two intermediate sources: a thirdhand report.
a. Previously used by two other owners.
b. Dealing in merchandise previously used by two other owners.

third′hand′ adv.
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.


gained from two intermediaries away from the original source
in a doubly indirect manner
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014



1. previously owned by two successive people.
2. secondhand, esp. in poor condition.
3. twice removed.
4. after two other users or owners.
5. by way of intermediate sources; indirectly.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.thirdhand - derived from what is primary or original by two intermediate steps; "a thirdhand report"
secondary - being of second rank or importance or value; not direct or immediate; "the stone will be hauled to a secondary crusher"; "a secondary source"; "a secondary issue"; "secondary streams"
Adv.1.thirdhand - by doubly indirect means; "I got the news thirdhand"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
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In addition to the SHS health risks, a relatively new concept of thirdhand smoke (THS) has emerged (Acuff, Fristoe, Hamblen, Smith, & Chen, 2016; Winickoff et al., 2009).
According to a new study published last week in the journal Science Advances, researchers at Drexel University in Philadelphia found that thirdhand smoke, or residual chemicals left on indoor surfaces by tobacco smoke, could be harmful.
THURSDAY, May 10, 2018 (HealthDay News) -- Thirdhand smoke (THS), the chemical residue from cigarette smoke that attaches to anything and anyone in the vicinity of a smoke cloud, can still make its way into the air of buildings that currently have a non-smoking designation, according to a study published online May 9 in Science Advances.