Nice quiz. Some of these seem very overdue. Rotoscoping has been around for like a hundred years, and I've known the word for decades so it's not like it just popped up as a term.
Very true. I believe the film industry commonly called it "rotoscoping" way back when the Lord of the Rings came out... the weird, animated Lord of the Rings. As I read through the dictionary to make my vocabulary quizzes, I find it interesting that MW has every mineral that has ever existed and horribly technical jargon but omits quite a few commonly used words that are sometimes decades old. I was very surprised that the first one wasn't included in the 90s, for instance, because I definitely was familiar with the term back then.