Big data
Dictionary Definition
http://www.oxforddictionaries.com/us/definition/american_english/big-data
Committee Definition
1) Large amount of data that a single computer cannot process, store, or analyze and require the use of several computers to process.
2) A professional field dealing with analyzing large amounts of data
Domain Specific Usage
Needs contribution
Notes
See the following Wikipedia article: http://en.wikipedia.org/wiki/Big_data