tidal
tid·al
adj \ˈtīd-əl\Definition of TIDAL
: of, relating to, or constituting tidal air <interference with the normal tidal exchange of the lungs—F. R. Mautz & R. M. Hosler>
Learn More About
Seen & Heard 
What made you want to look up tidal? Please tell us where you read or heard it (including the quote, if possible).
