Hosting services that are provided to customers via multiple connected servers that comprise a cloud, as opposed to being provided by a single server or virtual server. While security and lack of full control of data are the most frequently cited concerns with cloud hosting, there are numerous benefits possible with cloud hosting, including increased reliability and accessibility, seamless scalability and cost efficiency.
Cloud hosting is also sometimes referred to as server on-demand hosting, cloud server hosting or cluster server hosting.
See also Webopedia’s Cloud Computing Dictionary Resource and Cloud Computing Security Challenges.