...rarer abbreviations we sometimes come across. Nothing kills me more than having to stop to look up the abbreviation for cubic meter or cubic microns, etc.

While I have lots and lots in my expander already, such as pH, mg/dL, there are too many I don't have and am not even sure enough about to type without looking it up first.
So, this post is to be replied to with abbreviation examples for all of us to enter into our expanders! By anyone, not just me! I guess the best sources to find the correct way to type them all are......BOS, Drake and Drake....what else?