3 ms·Definite or indefinite?by garmaine 8y agoDefinite or indefinite?ggm 8y agowith plutonium, at the time? I think indefinite.garmaine 8y agoI was being a bit snarky. I have no idea what this sentence even means: > They talk of plutonium migrating upstream against an article even. Migrate? Upstream? What article?ggm 8y agoah. now I see. autocorrect. against an airflow.