I. va ‧ por /ˈveɪpə $ -ər/ BrE AmE noun [uncountable and countable]
[ Date: 1300-1400 ; Language: Old French ; Origin: vapeur , from Latin vapor 'steam, heat' ]
the American spelling of ↑ vapour
II. va ‧ pour BrE AmE British English , vapor American English /ˈveɪpə $ -ər/ noun
[uncountable and countable] a mass of very small drops of a liquid which float in the air, for example because the liquid has been heated ⇨ evaporation :
water vapour