I've kind of understood "dealer" to be someone who sells illegal drugs, and "budtender" to be someone who works the counter at a legal dispensary. I dunno for sure, I don't actually encounter these concepts often.
It does seem kind of silly, I mean we already have words that describe people who work in stores. On the other hand, it's specific and easily understood from the first hearing.
oh my god! it's a real word. I thought it was a typo. I have never heard of it before, since Marijuana is not legal where I live. I learned something. Thanks.
Pedantic. When people say micro-scale/nano-scale they mean "measured in micrometers/nanometers". So a nanoparticle is a particle with a size that makes nanometers the most convenient unit.