Main Entry: in·ha·la·tion

Pronunciation: \ˌin-hə-ˈlā-shən, ˌi-nə-ˈlā-\

Function: noun

Date: circa 1623

1 : the act or an instance of inhaling
2 : material (as medication) to be taken in by inhaling

— in·ha·la·tion·al \-shnəl, -shə-n^əl\ adjective