adjective

1. of, like, or constituting a digit, esp. a finger
2. having digits
3. performed with a finger
4. using numbers that are digits to represent all the variables involved in calculation
5. using a row of digits, rather than numbers on a dial, to provide numerical information a digital watch, a digital thermometer
6. 1. designating or of data, images, sounds, etc. that are stored, transmitted, manipulated, or reproduced by a process using groups of electronic bits represented as 1 or 0
   2. of or by means of such a process, as one using a digital computer
7. 1. designating or of a recording technique in which sounds or images are converted into groups of electronic bits and stored on a magnetic or optical medium: the groups of bits are read electronically, as by a laser beam, for reproduction
   2. designating or of a type of radio or TV transmission and reception in which data, sounds, or images are sent or received as groups of electronic bits

Etymology: ME < L digitalis

noun

1. a finger
2. a key played with a finger, as on the piano