thumbnut

[ thuhm-nuht ]

noun

1. wing nut.

thumbnut

/ ˈθʌmˌnʌt /

noun

1. a nut with projections enabling it to be turned by the thumb and forefinger; wing nut

Word History and Origins

Origin of thumbnut¹

First recorded in 1785–95; thumb + nut

Example Sentences

Tighten the thumbnut on the bolt K, and this will draw all four corners together with the same pressure.

From Project Gutenberg