underpart
noun
un·der·part
ˈən-dər-ˌpärt 
1
: a part lying on the lower side (as of a bird or mammal)
2
: a subordinate or auxiliary part or role
Examples of underpart in a Sentence
the bird's underparts were white
Recent Examples on the Web
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
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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
Cite this Entry
“Underpart.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/underpart. Accessed 4 Nov. 2025.
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underpart
noun
un·der·part
-ˌpärt
: a part lying on the lower side (as of a bird or mammal)
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