The reversal of the normal flow of a fluid or current. SEE ALSO: regurgitation.
- pyelovenous b. retrograde movement of fluid (urine or injected contrast materials) from renal pelvis into renal venous system. This occurs under conditions of distal obstruction or injection of solutions into renal collecting system.

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back·flow (bakґflo) reflux or regurgitation (def. 1).

Medical dictionary. 2011.

Look at other dictionaries:

  • backflow — noun Date: 1878 a flowing back or returning especially toward a source …   New Collegiate Dictionary

  • backflow — /bak floh /, n. a flow of a liquid opposite to the usual or desired direction. [1880 85; BACK2 + FLOW] * * * …   Universalium

  • backflow — noun The flow of a fluid (through a pipe etc) in a direction opposite to that which is normal or intended …   Wiktionary

  • backflow — Synonyms and related words: Charybdis, Maelstrom, back stream, backwash, backwater, countercurrent, counterflow, counterflux, eddy, gulf, gurge, maelstrom, refluence, reflux, regurgitation, swirl, twirl, vortex, whirl, whirlpool …   Moby Thesaurus

  • backflow — n. flow that moves in the opposite direction of what is desired or usual …   English contemporary dictionary

  • backflow — back•flow [[t]ˈbækˌfloʊ[/t]] n. hyd a flow of a liquid opposite to the usual or desired direction • Etymology: 1880–85 …   From formal English to slang

  • backflow — noun a flow that returns toward its source • Syn: ↑backflowing • Hypernyms: ↑flow, ↑flowing • Hyponyms: ↑regurgitation * * * ˈ ̷ ̷ˌ ̷ ̷ noun …   Useful english dictionary

  • Backflow prevention device — See also: Backflow (plumbing) In this situation, dirty water from the hillside pool will back siphon or back flow down the hosepipe and into the clean water tank. To prevent this from happening, the house s external tap should be fitted with a… …   Wikipedia

  • backflow valve. — See backwater valve. * * * …   Universalium

  • backflow scavenging — See loop scavenging …   Dictionary of automotive terms

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