Where does “真空管” come from?

真空管 (Japanese) comes from Japanese 管, from Old Japanese 管 — pipe, tube.

真空管 (Japanese): vacuum tube

Definitions

  1. vacuum tube

Ancestry of “真空管”, step by step

真空管 traces back through two separate lines of ancestry.

via Japanese 管

StepLanguageWordMeaning
1Japanese管pipe; a wind instrument; a pipe or tube, such as...
2Old Japanese管pipe, tube

via Japanese 真空

StepLanguageWordMeaning
1Japanese真空vacant, empty
Every word from Old Japanese 管 →Every word from Japanese 管 →