dial
1. di.al \'di-(-*)l\ n [ME, fr. L dies day] 1: the face of a sundial obs 2: any of various timepieces 3: the graduated face of a timepiece 4a: a face upon which some measurement or other number is registered usu. b y means of graduations and a pointer 4b: a disk that may be turned to make electrical connections or to regulate the operation of a machine and that usu. has marks around its border to serve as a guide for the operation 2. dial vb or di.aled or di.alled; or di.al.ing; or di.al.ling 1: to measure with a dial 2a: to manipulate a telephone dial so as to call 2b: to manipulate a dial so as to operate, regulate, or select 1: to manipulate a dial 2: to make a call on a dial telephone
Webster's English Dictionary