in ‧ hale /ɪnˈheɪl/ BrE AmE verb [intransitive and transitive]
[ Date: 1700-1800 ; Origin: in- + -hale (as in exhale ) ]
to breathe in air, smoke, or gas OPP exhale :
It is dangerous to inhale ammonia fumes.
Myra lit another cigarette and inhaled deeply (=breathed in a lot of smoke) .
—inhalation /ˌɪnhəˈleɪʃ ə n/ noun [uncountable] :
One man was treated for smoke inhalation (=when you breathe smoke from a fire) .