non-return
No coming back
Non-return describes something designed to prevent backward flow or movement.
A non-return valve allows fluid or gas to pass in one direction only, blocking any reversal.
The term appears in plumbing, engineering, and medical devices: The non-return mechanism kept sewage from backing up into the house.
Permitting single direction travel
- ticketEntry permit slip
- singleOne in number
- departureAct of going away
- emigrationLeaving homeland permanently
expatriate · migrant · relocation · permanent · irrevocable · journey · passage · no going back
Order to pay
- backflowLiquid reversing course
- preventerOne who stops occurrence
- flapperTwenties unconventional young woman
- clapperBell's internal striker
swing · disc · seat · seal · diaphragm · wafer · ball · gate
Science of flowing matter
- pressureForce upon contact
- pipelineLong-distance fluid transport tube
- systemConnected parts forming whole
- industrialOf factories and production
mechanical · gravity · leakage · water hammer · surge · flow rate · upstream · downstream
Provisioned H2O delivery system
- cross-connectionImproper pipe linkage
- contaminationIntroduction of impurities
- potableSafe for ingestion
- sanitaryFree of harmful microbes
drainage · wastewater · sewage · piping · installation · codes · standards · regulation
one-way
Permitting single direction travel
emigration · expatriate · migrant · relocation · permanent · irrevocable · journey · passage · no going back
check
Order to pay
- backflowLiquid reversing course
- preventerOne who stops occurrence
- flapperTwenties unconventional young woman
clapper · swing · disc · seat · seal · diaphragm · wafer · ball · gate · shutoff
fluid dynamics
Science of flowing matter
- pressureForce upon contact
- pipelineLong-distance fluid transport tube
- systemConnected parts forming whole
industrial · mechanical · gravity · leakage · water hammer · surge · flow rate · upstream · downstream · vertical
water supply
Provisioned H2O delivery system
- cross-connectionImproper pipe linkage
- contaminationIntroduction of impurities
- potableSafe for ingestion
sanitary · drainage · wastewater · sewage · piping · installation · codes · standards · regulation · backpressure
non-returnbidirectional
Operating in both directions
two-way · reversible · return · reciprocal · bilateral
non-returnreturn
Go back again
returning · comeback · homecoming · repatriation · round-trip
non-returnreversible
Able to be undone
returnable · undoable · retractable · recoverable · restorable
non, return, returns, returned, returning, returnable, returnee, turn, turns