Wi-Fi

Wi-Fi

[wahy-fahy]
Computers, Trademark.
a brand name certifying that a device or other product is compatible with a set of broadband wireless networking standards.
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Collins
World English Dictionary
Wi-Fi (ˈwaɪˌfaɪ)
 
n
computing a system of accessing the internet from remote machines such as laptop computers that have wireless connections
 
[C20: from wi(reless) fi(delity)]

Collins English Dictionary - Complete & Unabridged 10th Edition
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FOLDOC
Computing Dictionary

wi-fi definition

networking
Either of two different incompatible radio-based LAN protocols, namely 802.11b (which speaks DSSS at 2.4GHz) and 802.11a (which speaks OFDM at 5GHz).
The term was invented by the marketing departments of wi-fi equipment manufacturers. It is, notionally, short for "wireless fidelity", on the analogy of hi-fi for "high fidelity" audio.
(2003-09-02)
The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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