magnesium sulfide
A white, crystalline powder, usually found in an impure, brown, non-crystalline formA white, crystalline powder (when pure), usually found in an impure, brown, non-crystalline form.
Meaning
1 senses(uncountable)A white, crystalline powder (when pure), usually found in an impure, brown, non-crystalline form.
Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable