injection molding

noun

: a method of forming articles (as of plastic) by heating the molding material until it can flow and injecting it into a mold
injection-molded adjective

Examples of injection molding in a Sentence

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.
Polymer packaging requires injection molding, which normally uses high pressure. Neetika Walter, Interesting Engineering, 9 Jan. 2026 Those are: Tennessee will be awarded more than $35 million to four supplier companies doing plastics injection molding and metal fabrication. Olivia Evans, Louisville Courier Journal, 20 Nov. 2025 The injection molding process begins with the user pouring a liquid elastomer mixture into the injection chamber. New Atlas, 3 Sep. 2025 With the rise of plastic injection molding in the 1940s and '50s, companies started mass-producing recorders and selling them in bulk to school districts for as little as $1 apiece. Abigail Covington, NPR, 16 July 2025 See All Example Sentences for injection molding

Word History

First Known Use

1932, in the meaning defined above

Time Traveler
The first known use of injection molding was in 1932

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Cite this Entry

“Injection molding.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/injection%20molding. Accessed 26 Jan. 2026.

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