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Definition of "harmonica" []

  • Music A small rectangular instrument consisting of a row of free reeds set back in air holes, played by exhaling or inhaling. Also called mouth harp, mouth organ; also called regionally French harp. (noun)
  • Music A glass harmonica. (noun)
  • Music An instrument consisting of tuned strips of metal or glass fixed to a frame and struck with a hammer. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "harmonica" in a sentence
  • "Clutch played beefy, beery blues-rock, with vintage guitar riffs and growly vocals upholstered in harmonica and organ."
  • "With its compact design, the rugged, industry standard IP 20 model is also compatible for mating with multiport 'harmonica'-style RJ 45 jacks."
  • "But Andrew had never thought the harmonica was a toy."