intorsion noun. [ɪn'tɔ:ʃ(ǝ)n] M18.
[French from late Latin intorsio(n-), intortio(n-), from IN-² + torsio(n-) TORSION.]
The action of twisting; spec. (a) Botany the spiral twisting of the stem of a plant; (b) Ophthalmology rotation of the eyeballs in which the tops approach each other and the bottoms move away from each other.

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