underpart

American  

[uhn-der-pahrt] / ˈʌn dərˌpɑrt /

noun

1. the lower part or side.

   The underpart of the plane's fuselage scraped the treetops.

2. an auxiliary or secondary part or role.

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Etymology

Origin of underpart

First recorded in 1655–65; under- + part

Example Sentences

The top of his head struck stunningly against the underpart of the ice-sheet.

From Lad: A Dog by Terhune, Albert Payson

Luckily I've got my name and address scratched on the underpart of the frame, if the finder only takes the trouble to look.

From The Aeroplane Boys on the Wing Aeroplane Chums in the Tropics by Langworthy, John Luther

The underpart of Boswell's face is of a low, almost brutish character.'

From In the Name of the Bodleian and Other Essays by Birrell, Augustine

The underpart is whitish with dark spots on the abdomen.

From On the Trail An Outdoor Book for Girls by Beard, Lina

The kitchen seemed full of the presence of the long-dead woman whom Tony was still grieving for in some underpart of his mind.

From A Poor Man's House by Reynolds, Stephen Sydney