ˈtrace ˌelement BrE AmE noun [countable] technical
1 . a chemical ↑ element that your body needs a very small amount of to live
2 . a chemical ↑ element that only exists in small amounts on Earth
ˈtrace ˌelement BrE AmE noun [countable] technical
1 . a chemical ↑ element that your body needs a very small amount of to live
2 . a chemical ↑ element that only exists in small amounts on Earth
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012