Etymology

pyramidon

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Today it means: An organ stop having wooden pipes in the form of an inverted pyramid, giving very deep notes somewhat like those of a stopped diapason. Full definition →

First used 19th c.German Pyramidon
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pyramidon · noun1

From pyramid + -on (after accordion, harmonicon etc.).

pyramidon · noun2

  1. German · derived fromPyramidon
  2. English todaypyramidon

From German Pyramidon, corresponding to pyr(azolone) + amid(e) + -on.

First known use, by meaning

  • from 19th c. An organ stop having wooden pipes in the form of an inverted pyramid, giving very deep notes somewhat like those of a stopped diapason.
  • from 19th c. A yellowish-white powder used as an antipyretic.

Etymology from Wiktionary, CC BY-SA 4.0.