Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Allen wrench

play
noun Al·len wrench \ˈa-lən-\

Simple Definition of Allen wrench

  • : a small tool that is used to turn a special type of screw

Full Definition of Allen wrench

  1. :  an L-shaped hexagonal metal bar either end of which fits the socket of a screw or bolt

Origin of allen wrench

Allen Manufacturing Co., Hartford, Connecticut


First Known Use: 1943


Seen and Heard

What made you want to look up Allen wrench? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

February 9, 2016

marked by high spirits and laughter

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1037863653

Which of the following refers to thin, bending ice, or to the act of running over such ice?

pince-nez duvet kittly-benders spindrift
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ