by-product
noun
a secondary or incidental product, as in a process of manufacture.
by-products
-
pluralof by-product.plural
The grammatical form denoting more than one person, place, thing, or idea.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Countries have been wrestling with what to do with dangerous nuclear by-products since the first plants were built in the 1950s.
From Barron's ● Jun. 1, 2026
She also expects MMG’s copper-production costs to fall thanks to higher prices for its by-products and lower copper-concentrate treatment charges.
From The Wall Street Journal ● Nov. 25, 2025
Some studies have also shown that oils heated to above their smoke point release toxic chemical by-products.
From BBC ● Oct. 1, 2025
Fear and suspicion are, of course, common by-products of war.
From Los Angeles Times ● Oct. 28, 2024
But they are still highly radioactive, loaded with radioactive isotopes, the by-products of fission.
From "Meltdown" by Deirdre Langeland
