backflowEnglishOxford Dictionary of Englishbackflow /ˈbakfləʊ / ▸ noun [mass noun] the movement of liquid or air back in the direction it was flowing from: when filling the tank, use an anti-siphon device to prevent backflow the valves prevent backflow of blood into the veins.
EnglishOxford Dictionary of EnglishEnglishOxford Dictionary of English
EnglishOxford Dictionary of English