Illustrated Moulding Dictionary It's "InjectionSpeak", the vernacular of the business. It's one reason why injection moulding has such a steep learning curve. By publishing this dictionary, we hope to dispel some of the confusion that is running rampant out there. Each of these terms is a topic in the reference window, where they are given a much more thorough treatment. Learning these terms will not make you a moulding expert, but you can probably fool most people into thinking you're one.