A particular implementation of DependencyInjection where the InversionOfControl framework injects the dependent objects through the Constructor.
"The basic idea with constructor-injection is that the object has no defaults and instead you have a single constructor where all of the collaborators and values need to be supplied before you can instantiate the object."
http://misko.hevery.com/2009/02/19/constructor-injection-vs-setter-injection/
See InversionOfControl, HollywoodPrinciple, DependencyInjection, SetterInjection
There seems to be some refactoring/consolidation around the collection of terms describing InversionOfControl, but I didn't have the time to undertake it just now). --GeoffSobering
This was spun off from page YaxinWang, which is an odd mixture of public and personal.