from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Cigarette, cigar, or pipe smoke that is inhaled unintentionally by nonsmokers.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Smoke from cigarettes as inhaled by people who are not smoking.
Sorry, no etymologies found.
Ben said, "One person smoking one cigarette a day in a three-acre parking lot does not produce secondhand smoke in sufficient concentration to worry about."