smoke from a cigarette, cigar, or pipe that is involuntarily inhaled, especially by nonsmokers.
Origin of secondhand smoke
First recorded in 1975–80
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Cigarette, cigar, or pipe smoke that is inhaled unintentionally by nonsmokers and is injurious to their health if inhaled regularly over a long period of time.passive smoke
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.