Etymology

bolometer

bo·lom·e·ter
B3O1L1O1M3E1T1E1R1

Today it means: A sensitive device for detecting and measuring the energy of electromagnetic radiation. Full definition →

Ancient Greek μέτρον (métron) ← Proto-Indo-European *meh₁- ← Proto-Hellenic *gʷəlnō
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The story

  1. Proto-Indo-European*gʷelH-
  2. Proto-Hellenic*gʷəlnō
  3. Ancient Greekβᾰ́λλω (bắllō)
  4. Ancient Greekβολή (bolḗ)
  5. Proto-Indo-European*med-
  6. Proto-Indo-European*meh₁-
  7. Ancient Greekμέτρον (métron)
  8. English todaybolometer

From Ancient Greek βολή (bolḗ, “a throw, the stroke”) + English -o- + -meter. Coined by American physicist, pioneer of aviation, and 3rd Secretary of the Smithsonian Samuel Langley in 1878.

Etymology from Wiktionary, CC BY-SA 4.0.