- a chemical by-product of the oil-refining process
- The loss of jobs is an unfortunate by-product of technological advancements in the industry.
: something that is produced during the production or destruction of something else
: something that happens as a result of something else
What made you want to look up by-product? Please tell us where you read or heard it (including the quote, if possible).
to pay off by making regular payments
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