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光學
guāng​xué

optics

Definitions Defs Origin Strokes Stroke Words Sentences Sents
  1. 光 guāng noun
    light
    light; ray; beam of light
  2. 学 學 xué nounaffix
    branch of learning
    (bound form) a subject or branch of study; often used as a suffix for -logy, -ics, or -science