I can't disagree. Scientists clearly use the word, but I would say there is a great deal of specificity to their usage and a very general malleable unspecific u

I can't disagree. Scientists clearly use the word, but I would say there is a great deal of specificity to their usage and a very general malleable unspecific usage in typical science journalism, but that is a lot to write out, sort of an 80/20 rule for using the word Toxins. Often enough you will be write, so don't treat it as an inviolate law, but a good rule of thumb perhaps?