clean·​tech | \ ˈklēn-ˌtek How to pronounce cleantech (audio) \

Definition of cleantech

: technology that places an emphasis on environmentally friendly products, services, or practices At the same time, they hope to keep Europe competitive in the global sector known as cleantech, an area that includes everything from electric cars … to high-capacity batteries and technologies to harvest energy from new sources like waves and tides.— Beth Gardiner

Examples of cleantech in a Sentence

Recent Examples on the Web Contrast this to the 2000s when notable venture firms were publicly criticized for their large cleantech bets that didn’t ultimately pay off. Mark Hall, Forbes, 11 Apr. 2021 In the labs, the universities, in the cleantech startup community and broader to mitigate these challenges from a strategic and engineered approach. Danielle Kwateng-clark, Teen Vogue, 9 July 2019 After that, the bill’s backers worked to keep the coalition behind it — environmentalists, cleantech, Indivisible, faith groups, business groups — together. David Roberts, Vox, 31 Aug. 2018 Fremont has tried to attract cleantech and biotech firms as well as hardware and software tech companies to the roughly 850-acre area in its south end, where thousands of housing units and more retail are planned. Joseph Geha, The Mercury News, 21 Apr. 2017 Not only has cleantech patenting slowed down, but there are indications that the early-stage financing system critical to helping innovative new energy companies grow is not working well either. Jon Talton, The Seattle Times, 16 May 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cleantech.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of cleantech

1985, in the meaning defined above

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Time Traveler for cleantech

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The first known use of cleantech was in 1985

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Dictionary Entries Near cleantech

clean sweep



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Cite this Entry

“Cleantech.” Dictionary, Merriam-Webster, Accessed 19 Jan. 2022.

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