Definition of "sidestream" []

• A stream of fluid taken from an intermediate point in a process such as distillation (noun)

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• "The main-and most dangerous-component of second-hand smoke is called "sidestream tobacco smoke," and it contains more than 4,000 chemicals."
• "These forms are known as sidestream smoke (smoke that comes from the end of a lighted cigarette, pipe or cigar) and mainstream smoke (smoke that comes from the end of a lighted cigarette, cigar or pipe)."
• "A preliminary study from McMaster University found that women smokers and women exposed to sidestream smoke had half the pregnancy rates per embryo transfer of nonsmokers."