A cloud service provider can define hybrid cloud in terms of their deployment scenario and capability. For example if a customer collocated some servers in service provider DC and they want to connect the same infrastructure with same or any other CSP can be called as hybrid cloud model.
Though we can define the meaning of hybrid cloud, but in general, a hybrid cloud is a combination of a private cloud combined with the use of public cloud services where one or several touch points exist between the environments. The goal is to combine services and data from a variety of cloud models to create a unified, automated, and well-managed computing environment.
Combining public services with private clouds and the data center as a hybrid is the new definition of corporate computing. Not all companies that use some public and some private cloud services have a hybrid cloud. Rather, a hybrid cloud is an environment where the private and public services are used together to create value.
A cloud is hybrid
If a company uses a public development platform that sends data to a private cloud or a data center–based application.
When a company leverages a number of SaaS (Software as a Service) applications and moves data between private or data center resources.
When a business process is designed as a service so that it can connect with environments as though they were a single environment.