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单词 involute
释义 involute
adj. & n.
--adj
  1. involved, intricate.
  2. curled spirally.
  3. Bot. rolled inwards at the edges.
--n Geom. the locus of a point fixed on a straight line that rolls without sliding on a curve and is in the plane of that curve (cf. EVOLUTE).
Etymology: L involutus past part. of involvere: see INVOLVE
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