jūsuidatta
1. Was heavy water.; Was important.
Noun
#139565
1. Was heavy water.; Was important.
1. deuterium; heavy hydrogen
1. heavy water
1. If it were heavy water; If it was heavy water
1. heavy-water reactor
1. It's not heavy water.; It isn't deuterium.
1. It was heavy hydrogen.
1. Probably deuterium.; It's likely deuterium.
1. It was not heavy water.; It wasn't deuterium.
1. if it were heavy water; if it is heavy water