What do all these terms mean: Cannabis, marijuana, hemp, THC, CBD, dronabinol, and so on?

There has been a lot of interest recently in the use of cannabis, compounds extracted from it, and synthetic analogues in mental health treatment. One place to start is to understand what all these terms mean: Cannabis, marijuana, hemp, THC, CBD, nabiximols, dronabinol, nabilone, and so on. Cannabis, Marijuana, and Hemp While there has been…