sidestream
Intermediate (B1)
IPA: /ˈsaɪdˌstriːm/
KK: /ˈsaɪdˌstrim/
adjective
Definition
Referring to the smoke that comes from the burning end of a cigarette or cigar, rather than from the smoke exhaled by the smoker.
Example
Sidestream smoke can be harmful to people nearby, even if they are not smoking themselves.
Conversation
Did you know that sidestream smoke is more harmful than mainstream smoke?
Really? I had no idea it was that dangerous.
Yeah, it’s because it contains a lot of harmful chemicals.
Wow, I guess I should be more careful around smokers then.
Synonyms & Antonyms
Synonyms
secondary
indirect
peripheral
Antonyms
primary
direct
central
noun
Definition
A flow of liquid or gas that is taken from a specific point in a process, often used in contexts like distillation or other industrial processes.
Example
The sidestream from the distillation process was analyzed for purity.
Conversation
Have you ever seen a sidestream in a distillation process?
No, I haven't. What is it exactly?
It's basically a stream of fluid taken from an intermediate point during the process.
Root Explanation
Sidestream → It is formed from "side" (from Old English "side", meaning the lateral part) and "stream" (from Old English "stream", meaning a flow of water). The word "sidestream" refers to a flow of water that is located at the side of a main stream.
Memory Tip
Think of a flow of water that is located at the 'side' — that's what 'sidestream' means.
Visually Confused Words
midstream
amidstream