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horology (EN)
noun

noun “horology”

singular horology, uncountable
  1. the study of time, especially its measurement and passage
    She dedicated her life to horology, fascinated by the intricate ways humans have measured the passing of time.
  2. the craft and knowledge involved in creating and taking care of devices used to measure time, like clocks, watches, and sundials
    His passion for horology led him to restore antique pocket watches to their former glory.