silicon copper
An alloy of about two-thirds copper and one-third silicon, used to free molten copper…An alloy of about two-thirds copper and one-third silicon, used to free molten copper or brass from oxygen.
Meaning
1 senses(uncountable)An alloy of about two-thirds copper and one-third silicon, used to free molten copper or brass from oxygen.
Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable