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horology

noun
🔊/həˈrɒlədʒi/
🔊/həˈrɑːlədʒi/
[uncountable]
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  1. the study and measurement of time测时法；计时学
  2. the art of making clocks and watches钟表制造术Topics Hobbiesc2
    3. Word Originearly 19th cent.: from Greek hōra ‘time’ + -logy.