List of terms for additive manufacturing?

I don't believe this is a very specifically defined term so you may need to focus on more specific technologies.

Google companies which build "additive mnfr" equipment. There are a wide variety of materials used and a variety of different technologies involved. Some use essentially "ink jet" technology, some use polymer line, some use powders. The "high end" uses metal powders and laser sintering.

You might start with Wikipedia, it is often an excellent resource on such questions.