blue mass
A pill of prepared mercury, used as an aperient, etcA pill of prepared mercury, used as an aperient, etc.
Meaning
1 senses(historical, uncountable)A pill of prepared mercury, used as an aperient, etc.
Synonyms
1 synonymsLessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable