WordNet (r) 3.0 (2006):

webcam
    n 1: a digital camera designed to take digital photographs and
         transmit them over the internet

The Free On-line Dictionary of Computing (30 December 2018):

webcam

    (web camera) Any
   video camera whose output is available for viewing via the
   Internet or an intranet.  Typically a webcam would be a
   slow-scan CCD video camera connected to a video capture card
   in a computer.  Images from the camera are captured
   periodically and made available on a web page.  In 1999 there
   are hundreds of webcams in operation around the world showing
   everything from bedrooms to traffic.

   [List?]

   (1999-01-11)