Real Dictionary

imaging
a group or combination of interrelated, interdependent, or interacting elements forming a collective entity; a methodical or coordinated assemblage of parts, facts, concepts, etc [...]
a test or investigation, esp one planned to provide evidence for or against a hypothesis: a scientific experiment [...]
the process of forming or obtaining images by electronically tracing something such as sound waves, temperature, or chemicals, rather than by using light rays or ordinary photography [...]
uncountable noun: Imaging is the process of forming images that represent things such as sound waves, temperature, chemicals, or electrical activity.