Rotatory \Ro"ta*to*ry\, a. [Cf. F. rotatoire. See Rotate,
Rotary.]
1. Turning as on an axis; rotary.
2. Going in a circle; following in rotation or succession;
as, rotatory assembles. --Burke.
3. (Opt.) Producing rotation of the plane of polarization;
as, the rotatory power of bodies on light. See the Note
under polarization. --Nichol.
Source: Webster's Revised Unabridged Dictionary (1913)
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