Wiktionary

HHD

See also: hhd.

English

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Noun

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HHD (countable and uncountable, plural HHDs)

  1. (computing) Initialism of hybrid hard drive.
  2. (medicine) Initialism of home hemodialysis.
  3. (medicine) Initialism of hiatus hernia diafragmatica.
  4. (military) Initialism of headquarters and headquarters company.

Proper noun

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HHD

  1. Initialism of Helena Historic District.
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