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Noun edit

HMI (plural HMIs)

  1. (technology) Initialism of human-machine interface.
  2. Initialism of hydrargyrum medium-arc iodide. (a kind of lamp)
    • 2015, Harriet Margolis, Alexis Krasilovsky, Julia Stein, Shooting Women: Behind the Camera, Around the World, page 151:
      A regular package here would give you six pieces of 1K tungsten lights, ten pieces of inky-dinkies, one HMI if you're lucky.

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