Meaning of INTEGER in English

INTEGER

in ‧ te ‧ ger /ˈɪntədʒə, ˈɪntɪdʒə $ -ər/ BrE AmE noun [countable] technical

[ Date: 1500-1600 ; Language: Latin ; Origin: 'whole, complete' ]

a whole number:

6 is an integer, but 6.4 is not.

Longman Dictionary of Contemporary English.      Longman - Словарь современного английского языка.