In Technology: When organizations collect data or relevant information from the masses of people using certain services or devices in order to compile useful information (anonymously) for the future development of other technologies.
Apple crowdsources (crowdsourced) WiFi hotspot and cell tower Location information from iPhone users to compile a database with locations of fixed WiFi access points and cell towers in order to enhance location based services on mobile devices.
by ITmcpheresonAZ May 12, 2011

The practice of outsourcing a job or task that is traditionally performed by employees or a contracted company to a non-organized, usually large group of people, generally in the form of an open call or competition.
A: "I wish I could write a dictionary for all the cool slang out there, but it's too big a task for me alone, and I can't afford to pay anyone else to do it."

B: "Crowdsourcing is the solution to your problem.. I know -- you should make a website called, or something. People will just fill it up and edit and moderate all on their own, and you won't have to pay a dime!"

See also the X PRIZE, Wikipedia, Netflix Prize, Millennium Prize, etc.
by usman noyo December 7, 2007
you really pasted the description on Wkipedia

i'm bored to death
Urban Dictionary is a crowdsourced online dictionary for slang words and phrases, operating under the motto "Define Your World." The website was founded in 1999 by Aaron Peckham. Originally, Urban Dictionary was intended as a dictionary of slang or cultural words and phrases, not typically found in standard dictionaries, but it is now used to define any word, event, or phrase (including sexually explicit content). Words or phrases on Urban Dictionary may have multiple definitions, usage examples, and tags. As of 2014, the dictionary had over seven million definitions, while around 2,000 new entries were being added daily.
by transdisciplinary August 30, 2021