I didn't realise the word pure was context sensitive.
OED doesn't either, perhaps you could contact them and help them update their definition:
OED doesn't either, perhaps you could contact them and help them update their definition:
Pure or ultrapure simply mean different and very clearly defined levels of purity for every field they are used in. Including some that stretch your concept of pure, like pure quantum states. Please don't try to redefine it.
You're going into deeper and deeper mud while trying to walk out clean from this.