digital

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Relating to or resembling a digit, especially a finger.
• adjective Operated or done with the fingers.
• adjective Having digits.
• adjective Expressed in discrete numerical form, especially for use by a computer or other electronic device.
• adjective Relating to or being a device that can generate, record, process, receive, transmit, or display information that is represented in discrete numerical form.
• adjective Relating to or being a service that provides information expressed in discrete numerical form.
• adjective Relating to or being a profession or activity that is performed using digital devices.
• adjective Using or giving a reading in digits.
• adjective Characterized by widespread use of computers.
• noun A key played with the finger, as on a piano.

from The Century Dictionary.

• noun One of those primaries, or quill-feathers, most commonly four in number, which are attached to the phalanges of the second and third digits of a bird's wing.
• Of or pertaining to a digit or digits: as, the digital phalanges.
• Resembling digits; digitate.
• noun A digit; a finger or toe.
• noun The fifth and last joint of the pedipalp of a spider.
• noun One of the keys or finger-levers of instruments of the organ or piano class.

from the GNU version of the Collaborative International Dictionary of English.

• adjective Of or pertaining to the fingers; done with the fingers
• adjective of or pertaining to digits{3}; expressed in digits{3}, or using digits{3}.
• adjective (Computers) performing internal logical and arithmetic operations by means of digits, usually represented as binary numbers. Contrasted to analog, wherein variables are represented as coninuous physical quantities such as voltages or the position of a pointer on a continuous scale.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective Having to do with digits (fingers or toes); performed with a finger.
• adjective Property of representing values as discrete numbers rather than a continuous spectrum.
• adjective Of or relating to computers or the Computer Age.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• adjective relating to or performed with the fingers
• adjective displaying numbers rather than scale positions
• adjective of a circuit or device that represents magnitudes in digits