(ˈ)ad|vekshən noun
( -s )
Etymology: Latin advection-, advectio act of bringing, transportation, from advectus (past participle of advehere to carry to, from ad- + vehere to convey) + -ion-, io -ion — more at way
: the horizontal movement of a mass of air which causes changes in temperature or in other physical properties of air — compare convection
• ad·vec·tion·al -shən ə l, -shnəl adjective