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racemic of a chemical compound, containing equal quantities of isomers that rotate polarized light to the left and right, so that the net effect is zero.
racer a person who takes part in races. [3 definitions]
race riot widespread violence or destruction in a community that arises from racial conflict or hatred.
racerunner any of several fast-moving long-tailed American lizards.
racetrack a track or course used for racing.
raceway a narrow artificial channel for water; millrace. [2 definitions]
rachis the central axis or shaft of an inflorescence of a compound leaf. [3 definitions]
rachitis inflammation of the spine; rickets.
racial characteristic of a single race or of particular races of people. [2 definitions]
racialism the adherence to or practice of racism.
racing form a printed sheet or booklet containing information about the horses running at one or several racetracks.
racism the theory or opinion that a certain race or races of people, usu. one's own, are superior to others because of certain inborn characteristics. [2 definitions]
rack1 a frame or structure used to hold or display various items. [9 definitions]
rack2 destruction; ruin.
rack3 one of two fast horse's gaits, either single-foot or pace. [2 definitions]
rack4 a thin group of clouds moving in the wind. [2 definitions]
rack5 to drain off (wine, cider, or the like) from the dregs.
rack6 the rib or neck cut of lamb, veal, or the like.
racket1 loud, confused noise; tumult; din. [3 definitions]
racket2 a tight net strung on a light, usu. oval frame with a long handle, used to hit the ball in games such as tennis. [3 definitions]
racketeer a person involved in an organization that carries out illegal activities such as fraud and extortion.