a day during which smokers are encouraged to abstain from smoking as part of a campaign to emphasize the hazards of the practice.
- Smoke point
noun the temperature at which heated fat or oil starts to break down and burn, giving an unpleasant taste to food Usage Note cooking
noun 1. a can of chemicals that produces a great quantity of smoke when ignited.
adjective 1. that cannot be penetrated by smoke: a fireproof and smokeproof compartment.
noun 1. trademark a device for estimating the amount of carbon monoxide in the breath: used in testing whether or not people, esp schoolchildren, have been smoking