in ‧ ser ‧ tion AC /ɪnˈsɜːʃ ə n $ -ɜːr-/ BrE AmE noun
[ Word Family: noun : ↑ insertion , ↑ insert ; verb : ↑ insert ]
1 . [uncountable] the act of putting something inside something else
2 . [countable] something that is added to the middle of a document or piece of writing