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The Collaborative International Dictionary
Intorsion

Intorsion \In*tor"sion\, n. [L. intortio a curling, crisping: cf. F. intorsion. See Intort, and cf. Intortion.]

  1. A winding, bending, or twisting.

  2. (Bot.) The bending or twining of any part of a plant toward one side or the other, or in any direction from the vertical.

Wiktionary
intorsion

n. 1 A winding, bending, or twisting. 2 (context botany English) The bending or twining of any part of a plant toward one side or the other, or in any direction from the vertical.