Am I a low-grade perjurer—and my friend what he was working round to show?
Low-grade radium residues are used to some extent as fertilizers.
Kainit is a low-grade potash because the impurities have not been taken out.
He's the low-grade one, and she has to work overtime to make him pay.
It's as weird a collection of low-grade life-forms as I've ever seen, but not plasmoid.