Princeton's WordNet

1. slipstream, airstream, race, backwash, wash(noun)

   the flow of air that is driven backwards by an aircraft propeller

2. aftermath, wake, backwash(noun)

   the consequences of an event (especially a catastrophic event)

   "the aftermath of war"; "in the wake of the accident no one knew how many had been injured"

3. wake, backwash(noun)

   the wave that spreads behind a boat as it moves forward

   "the motorboat's wake capsized the canoe"

Wiktionary

1. backwash(Noun)

   The backward flow of water from oars or propeller.

2. backwash(Noun)

   The similar flow of air from an aircraft engine.

3. backwash(Noun)

   The result or consequence of an event; an aftermath.

4. backwash(Noun)

   The saliva, spit or food particles that have flowed back into a drink after someone has drunk from it.

Webster Dictionary

1. Backwash(verb)

   to clean the oil from (wood) after combing

Dictionary of Military and Associated Terms

1. backwash

   An even layer of water that moves along the sea floor from the beach through the surf zone and caused by the pile-up of water on the beach from incoming breakers.

• boeggolfAfrikaans
• انْحِسار الماء خَلْفَ السَّفينَـهArabic
• водна диряBulgarian
• ressacaPortuguese (BR)
• protiproudCzech
• das KielwasserGerman
• kølvandDanish
• ρεύμα νερού που κινείται προς τα πίσω (π.χ. το ρεύμα που δημιουργεί ένα καράβι διασχίζοντας τη θάλασσα)Greek
• corriente de expulsiónSpanish
• järellainetusEstonian
• پس موجFarsi
• peräaaltoFinnish
• remousFrench
• זֶרֶם חוֹזֵרHebrew
• प्रतिक्षिप्त जलHindi
• uzvitlana struja vodeCroatian
• sodrásHungarian
• riakIndonesian
• kjalsogIcelandic
• risaccaItalian
• 後方への波Japanese
• 역류Korean
• priešsrovėLithuanian
• kuģa saceltie viļņi; pretplūsmaLatvian
• ombak undurMalay
• boeggolfDutch
• kjølvann, motsjøNorwegian
• prąd wstecznyPolish
• پس موجPersian
• نا تمامه،نيمايى،شاته پاتىPashto
• ressacaPortuguese
• contra­curentRomanian
• волны от пароходаRussian
• protiprúdSlovak
• ladijski valoviSlovenian
• pruga iza brodaSerbian
• svallvågSwedish
• คลื่นที่ไหลกลับมากระทบฝั่งThai
• geri akıntı, dümen suyuTurkish
• 船行經水面後形成的回流Chinese (Trad.)
• хвилі від човна або судна, зворотній потікUkrainian
• ، لہر کا اتار الٹی لہر ، موجِ واپسیںUrdu
• nước xoáy ngượcVietnamese
• 由船等运动引起的逆流Chinese (Simp.)