ultraheavy
adjective
ul·tra·heavy
ˌəl-trə-ˈhe-vē 
: extremely or extraordinarily heavy
The only good these lures were doing for me was to build muscle from toting the ultraheavy tackle box.—
Steve Sarley
Steve SarleyExamples of ultraheavy in a Sentence
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In 2021, Ark Energy took a stake in Hyzon Motors, one of the few firms working on ultraheavy trucks powered by fuel cells.
—IEEE Spectrum, 25 Dec. 2022
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IEEE Spectrum, 25 Dec. 2022
Cite this Entry
“Ultraheavy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ultraheavy. Accessed 3 Nov. 2025.
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