Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary
1

hairpin

play
noun hair·pin \-ˌpin\

Simple Definition of hairpin

  • : a pin that is worn in your hair; especially : a pin shaped like a U that is worn to hold your hair in place

  • : an extremely sharp turn in a road that is shaped like a U

Full Definition of hairpin

  1. 1 :  a pin to hold the hair in place; specifically :  a long U-shaped pin

  2. 2 :  something shaped like a hairpin; specifically :  a sharp U-shaped turn in a road

1771

First Known Use of hairpin

1771


2

hairpin

adjective hair·pin

Definition of hairpin

  1. :  having the shape of a hairpin <a hairpin turn>; also :  having hairpin turns <a steep hairpin road>



1887

First Known Use of hairpin

1887


HAIRPIN Defined for Kids

hairpin

play
noun hair·pin \ˈher-ˌpin\

Definition of hairpin

  1. :  a pin in the shape of a U for holding the hair in place




Medical Dictionary

hairpin

play
noun hair·pin \ˈha(ə)r-ˌpin, ˈhe(ə)r-\

Medical Definition of hairpin

  1. :  a region in single-stranded RNA or DNA that is double-stranded due to pairing between purine and pyrimidine bases in adjacent sequences of the RNA or DNA that are complementary and inverted—called also hairpin loop




Learn More about hairpin


Seen and Heard

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

WORD OF THE DAY

February 8, 2016

to clear from accusation or blame

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 kittly-benders spindrift duvet
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