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单词 tourbillion
释义

WordReference Random House Unabridged Dictionary of American English © 2024
tour•bil•lion  (tŏŏr bilyən),USA pronunciation n. 
  1. a whirlwind or something resembling a whirlwind.
  2. a firework that rises spirally.
  3. [Horol.]a frame for the escapement of a timepiece, esp. a watch, geared to the going train in such a way as to rotate the escapement about once a minute in order to minimize positional error. Cf. karrusel.
  • Vulgar Latin *turbiliōnem, dissimilated variant of *turbiniōnem, accusative of *turbiniō whirlwind. See turbine, -ion
  • Middle French to(u)rbillon
  • earlier turbilloun 1470–80

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更新时间:2024/9/20 10:57:48