quan ‧ tum /ˈkwɒntəm $ ˈkwɑːn-/ BrE AmE noun ( plural quanta /-tə/) [countable] technical
[ Date: 1600-1700 ; Language: Latin ; Origin: quantus ; ⇨ ↑ quantity ]
a unit of energy in ↑ nuclear physics
quan ‧ tum /ˈkwɒntəm $ ˈkwɑːn-/ BrE AmE noun ( plural quanta /-tə/) [countable] technical
[ Date: 1600-1700 ; Language: Latin ; Origin: quantus ; ⇨ ↑ quantity ]
a unit of energy in ↑ nuclear physics
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012