circumduction

Cir`cum*duc"tion, n. Etym: [L. circumductio.] 1. A leading about; circumlocution. [R.] Hooker. 2. An annulling; cancellation. [R.] Ayliffe. 3. (Phisiol.) Defn: The rotation of a limb round an imaginary axis, so as to describe a concial surface.

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