Difference between Multiphase and Polyphase

What is the difference between Multiphase and Polyphase?

Multiphase as an adjective is that generates, or employs, multiple alternating current supplies with the same voltage but different phase angles while Polyphase as an adjective is of, pertaining to, or involving multiple alternating currents that have the same frequency but differ in phase

We hope you now know whether to use Multiphase or Polyphase in your sentence.