Change/wheel

(Mech.) One of a set of wheels of different sizes and number of teeth, that may be changed or substituted for other wheels in machinery, to produce a different but definite rate of angular velocity in an axis, as in cutting screws, gear, . Chang-Mai, a city of S.E. Asia, in Laos, on the Mekong River, Lat. 20° 16′ N., Lon. 99° 2' E.; pop . estimated at 30,000. Chanhas's en, or CHAN HAS SAN, in Minnesota , a post village and township of Carver co., about 28 m. N. by E. of Saint Paul,