as in underside
the side or part facing downward from something
the bird's underparts were white
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Recent Examples of underpart
Calliope hummers have glossy green on the back and crown with white underparts.
—
Joan Morris, The Mercury News, 26 July 2019
The adult brown pelican has gray underparts with brown hues, black-brown belly, yellow head and dark brown neck, silver-gray back and wings, with black feathers at the tips.
—Ernie Cowan, San Diego Union-Tribune, 13 June 2019
Joan Morris, The Mercury News, 26 July 2019
The adult brown pelican has gray underparts with brown hues, black-brown belly, yellow head and dark brown neck, silver-gray back and wings, with black feathers at the tips.
—Ernie Cowan, San Diego Union-Tribune, 13 June 2019
Recent Examples of Synonyms for underpart
Noun
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Add beef in an even layer and cook, undisturbed, until deeply browned on underside, about 5 minutes.—
Kimberly Holland,
Southern Living,
25 Oct. 2025
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Secured by six snaps, the removable top panel features nylon mesh on its underside to provide similar dust protection to the bottom filter.—
PC Magazine,
PC Magazine,
18 Oct. 2025
Noun
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Bagsmart Tech Organizer Nothing feels messier than cords tangled at the bottom of your bag mid-travel day, which is why this smart tech organizer never leaves my suitcase.—
Samantha Leal,
Travel + Leisure,
29 Oct. 2025
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Use the bottom of a heavy glass or measuring cup to smash carrots, without breaking them, to about 1/2-inch thickness.—
Madalyn Bendgen,
Better Homes & Gardens,
29 Oct. 2025
Cite this Entry
“Underpart.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/underpart. Accessed 29 Oct. 2025.
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