Rotator i a (rotator i a)

pl. [NL., fem. of L. * rotator i us, rotator i an (rō-ta-tō'ri-an), n. [ The tiny creature, as it develops, shows itself a rota to rian . The Century , XIV. 154. rotatory (ro'ta-to-ri), a. and n. [ F.rotatoire, The ball and socket joint allows. of a rotatory or sweeping motion. Paley, Nat. Theol., ix. Verdet demonstrated that when a salt is di olved in water the water and the salt each bring into the solution their special rotatory power. At kins on, tr. of Mascart and Joubert, I. 576. My lady with her fingers interlock'd, And rotatory thumbs on silken knees. Tennyson, Aylmer's Field. 2. Going about in a recurrent series; moving from point to point; following in succe ion: as, rotatory a emblies. Burke. ( Imp. Dict.) 3. In zoöl., rota to rial or rotiferal, as a wheel animalcule.-4. In an at., causing rotation: as, a rotatory muscle. - Magnetic rotatory polarization, that rotation of the plane of polarization, + or -, which takes place when a plane-polarized beam of light is transmitted through a transparent medium in a powerful magnetic field, and similarly when it is reflected from the pole of a powerful electromagnet. - Magnetic rotatory power. See magnetic. - Rotatory diarthrosis. Same as cyclarthrosis. Rotatory muscle, a rotator. Rotatory polarization, the change of plane to the right or to the left (of an observer looking in the direction the ray is moving) which a ray of plane-polarized light undergoes when pa ed through quartz, sugar, etc.: if the rotation is to the right, the substance is said to be dextrorotatory (or positive), as cane-sugar and glucose; if to the left, it is called levorotatory (or negative), as starch-sugar, quinine, etc. See also magnetic rotatory polarization, above. - Rotatory power, the property which is po e ed by some crystalline bodies, and a great number of liquids = Sp. rut a = Pg. rota, track, course of a ship at sea (ML. reflex rotta, rota ), learning, or in the repetition of that which has been learned; exact memorizing, or reproduction from memory, as of words or sounds, with or without attention to their significance: chiefly in the phrase by rote. Loke a ribaut of hem that can nouzt wel reden His rewle ne his respondes but be pure rote, Als as he were a connynge Clerke he casteth the lawes. Piers Plowman's Crede (E. E. T. S.), 1. 377. First, rehearse your song by rote , To each word a warbling note. Shak., M. N. D., v. 1. 404. IMG:content-2498.png:[blocks in formation] The lazy manner of reading sermons, or speaking sermons by rote. Goldsmith, The Bee, No. 7. 2. A part mechanically committed to memory. [Rare.] A rote of buffoonery that serveth all occasions. Swift. 3. A row or rank. [Prov. Eng.] We'll go among them when the barley has been laid in rotes. R. D. Black more, Lorna Doone, xxix. (song). rotelt (rot), v. t. [ Speak To the people; not by your own instruction, But with such words that are but roted in Your tongue. Shak ., Cor., iii. 2. 55. 2. To repeat from memory. And if by chance a tune you rote , 'Twill foot it finely to your note. Drayton, Muses' Elysium, ii. rote2+ (rot), v. i. [ Now this modell upon rotation was that the third part of the House should rote out by ballot every yeare, so that every ninth yeare the House would be wholly altered. No magistrate to continue above 3 yeares. Aubrey, Lives, J. Harrington. A third part of the senate, or Parliament, should rote out by ballot every year, and new ones to be chosen in their Z. Grey, Note on Hudibras, II. iii. 1108. room.