semantic Web

or se·man·tic web,or Se·man·tic Web

[si-man-tik web]
noun
  1. an extension of the World Wide Web in which data is structured and XML-tagged on the basis of its meaning or content, so that computers can process and integrate the information without human intervention: the semantic Web acting as a global database or huge brain.

Origin of semantic Web

1995–2000; 1960–65 for earlier sense “network of meanings”
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British Dictionary definitions for semantic web

semantic Web

noun
  1. a proposed development of the World Wide Web in which computers can interpret and act on natural language
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012