millihertz

M3I1L1L1I1H4E1R1T1Z10

noun

A unit equal to one-thousandth of a cycle per second.

OriginEnglish hertz ← French milli- ← Latin mīlle →
Scrabble 24
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Meanings

nounmillihertz (plural millihertz)
  1. A unit equal to one-thousandth of a cycle per second.

Origin

  1. Proto-Indo-European*sem-
  2. Proto-Indo-European*sm̥-
  3. Proto-Indo-European*smih₂
  4. Proto-Indo-European*ǵʰes-
  5. Proto-Indo-European*ǵʰéslom
  6. Proto-Indo-European*ǵʰéslih₂
  7. Proto-Indo-European*smih₂ǵʰéslih₂
  8. Proto-Italic*smīɣeslī
  9. Latinmīlle
  10. Frenchmilli-
  11. Englishmilli-
  12. Englishhertz
  13. Englishmillihertz

From milli- + hertz.

Full word history & related roots →
Cite this entry
APA

millihertz. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/millihertz

MLA

“millihertz.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/millihertz. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “millihertz,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/millihertz.

Source: millihertz on Wiktionary, CC BY-SA 4.0.