What does the word converter mean?

Usage examples for converter

  1. But it's as simple to build as a Bending Converter." – Unwise Child by Gordon Randall Garrett
  2. A pauper, dying in a free- treatment ward, her body shoved into a mass- energy converter. – Four-Day Planet by Henry Beam Piper
  3. The evaporated portion was instantly replaced by the manufactured bone of the converter. – Vital Ingredient by Charles V. De Vet