by-product

noun

by-prod·​uct ˈbī-ˌprä-(ˌ)dəkt How to pronounce by-product (audio)
variants or byproduct
plural by-products or byproducts
1
: something produced in a usually industrial or biological process in addition to the principal product
Sulfured molasses is a by-product of sugar refining.Wayne Gisslen
Small amounts of amyloid beta are generated as an ordinary metabolic byproduct and are believed to do no harm, but larger amounts seem to be tied to Alzheimer's.January W. Payne
Meat by-products are parts other than meat, including organs, blood and bone …Amy D. Shojai
Among the most commonly occurring and thoroughly studied chlorination byproducts are trihalomethanes …Consumer Reports
2
: a secondary and sometimes unexpected or unintended result
Japan's success as an international exporter of manufactured goods is a by-product of the volatile trade among Japanese cities.Jane Jacobs
As investor confidence grows, overspending and overborrowing are typically byproducts of an aging bull market.Carolyn Bigda
One of the by-products of the information age is an increasing number of data formats.John Was

Examples of by-product in a Sentence

hydrogen is one by-product of that chemical reaction
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The two most recent were the rejection of Lewis Strauss as secretary of commerce, in part a by-product of Strauss’ rivalry with J. Robert Oppenheimer, and of President George H.W. Bush’s nomination of former Senator John Tower as secretary of defense, ostensibly because of problems with alcohol. George Liebmann, Baltimore Sun, 22 Dec. 2024 The hope was that by strengthening brand awareness and affinity, business growth becomes a happy by-product. Beth Ann Kaminkow, Forbes, 20 Dec. 2024 Black liquor is a by-product of the paper production process, according to the U.S. Energy Information Administration. Anthony Robledo, USA TODAY, 12 Dec. 2024 One study suggested that some air purifiers could even create formaldehyde as a by-product. Topher Sanders, ProPublica, 9 Dec. 2024 See all Example Sentences for by-product 

Word History

First Known Use

1849, in the meaning defined at sense 1

Time Traveler
The first known use of by-product was in 1849

Dictionary Entries Near by-product

Cite this Entry

“By-product.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/by-product. Accessed 30 Dec. 2024.

Kids Definition

by-product

noun
by-prod·​uct
ˈbī-ˌpräd-(ˌ)əkt
: a product or result produced in addition to the main product or result

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