Web·cam

[web-kam]
noun ( often lowercase )
a digital camera whose images are transmitted, often in real time, over the World Wide Web.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins
World English Dictionary
webcam (ˈwɛbˌkæm) [Click for IPA pronunciation guide]
 
n
a camera that transmits still or moving images over the internet

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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00:10
Webcam is always a great word to know.
So is doohickey. Does it mean:
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
a gadget; dingus; thingumbob.
FOLDOC
Computing Dictionary

webcam definition

World-Wide Web, hardware, video
(World-Wide 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)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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Example sentences
Webcam mic is oddly positioned at the right of the screen.
There's no webcam for those of us hoping to do video chats.
To make videoconferencing happen would require a box with some power in it, as
  well as a webcam.
Scientists and anyone else interested in the river can watch or operate the
  webcam from their web browser.
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