Webster
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Webster’s Revised Unabridged Dictionary · 1913

Rotatory

Ro′ta·to·ry (rō′tȧ·tō·ry̆), 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.

Ro′ta·to·ry, n. (Zoöl.) A rotifer. [R.] Kirby.

Webster’s Revised Unabridged Dictionary, Noah Porter, editor (Springfield, Mass.: G. & C. Merriam, 1913). Public domain. Text as transcribed by MICRA, Inc., from Project Gutenberg. Changed for Deep Dive Bible: Greek, which our source spelled in Latin letters, set in Greek letters; entries of one spelling merged into one article; Greek words our source left out (shown as “?”), read from the 1898 printing, from the same plates (the Library of Congress’s copy), where the place could be found with certainty.