noun
Primarily used in technical contexts such as physics, electronics, and radio. Often appears in compounds like 周波数 (frequency).
この回路は高い周波で動作する。
This circuit operates at a high frequency.
電波の周波を測定する。
Measure the frequency of the radio wave.
Compound of 周 (cycle, circumference) and 波 (wave), literally 'cycle wave'. The term was coined in the context of modern physics and engineering to express the concept of frequency.