I wrote in one of my poems about the chemical name of heroine. It actually happens that they create new chemicals similar to heroine but have no name yet in the US law. The US keeps adding new chemical names to the laws to ban heroine, but there is always a substance that is slightly different and has no name, then it can be sold in stores legally for a while until the US lawmakers catch up, and it goes back and forth like this, forever.
Our chemical names are too precise to capture heroine and make it illegal, but the US cannot accept vagueness in language, so it fails to keep its own laws.
yes a few vague words are better. so one great monk I was lucky enough to listen to in person is famous for the meditation practice of saying "it is like this" the words are so vague that you go looking for what it means in the here and now.