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Synonyms

butterfly nut

American  

noun

  1. wing nut.

butterfly nut British  

noun

  1. another name for wing nut

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of butterfly nut

An Americanism dating back to 1735–45

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Two thirds of the length was threaded and fitted with a "butterfly" nut in front of which was a cylindrical plug of guttapercha faced with indiarubber.

From Project Gutenberg

The flight-lieutenant's next move was to screw the pliable plug hard against the perforated metal by means of the "butterfly" nut, and by so doing hole No.1 was repaired—the first of six.

From Project Gutenberg

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.