Etymology

electrotonus

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Today it means: The variation of the excitability and conductivity of a nerve or muscle as an electric current passes through it Full definition →

English tonus ← Latin electro- ← Ancient Greek ἤλεκτρον (ḗlektron)
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The story

  1. Frenchélectro-
  2. Ancient Greekἤλεκτρον (ḗlektron)
  3. Latinēlectrum
  4. Latinelectro-
  5. Englishelectro-
  6. Englishtonus
  7. English todayelectrotonus

From electro- + tonus.

Etymology from Wiktionary, CC BY-SA 4.0.