sum ‧ ma ‧ tion AC /səˈmeɪʃ ə n/ BrE AmE noun [countable] formal
1 . a ↑ summary or ↑ summing-up
2 . the total amount or number when two or more things are added together
sum ‧ ma ‧ tion AC /səˈmeɪʃ ə n/ BrE AmE noun [countable] formal
1 . a ↑ summary or ↑ summing-up
2 . the total amount or number when two or more things are added together
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012