1

hairpin

play
noun hair·pin \ˈher-ˌpin\

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 English Language Learners

1

hairpin

play
noun hair·pin \ˈher-ˌpin\

Definition of hairpin for English Language Learners

  • : 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


HAIRPIN Defined for Kids

hairpin

play
noun hair·pin \ˈher-ˌpin\

Definition of hairpin for Students

  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-\
variants: also

hairpin loop

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



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