[dahy-uhl-uhp, dahyl-]
adjective Computers.
of or pertaining to a terminal that links to a computer by dialing a telephone number.

adj. use of verb phrase dial up

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Example sentences
Railroad cars of course being the dial-up modems of the day.
The days of dial-up modems may be gone, but some websites are still
  surprisingly sluggish.
If you work anywhere else-or if you surf from home-you are probably using
  dial-up access.
They spend more time-and money-online than dial-up peons.
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