to withdraw or draw off (a liquid) gradually; remove slowly or by degrees, as by filtration

to drain oil from a crankcase.

to withdraw liquid gradually from; make empty or dry by drawing off liquid

to drain a crankcase.

to exhaust the resources of

to drain the treasury.

to deprive of strength; tire.

to flow off gradually.

to become empty or dry by the gradual flowing off of liquid or moisture

This land drains into the Mississippi.

something, as a pipe or conduit, by which a liquid drains.

Surgery . a material or appliance for maintaining the opening of a wound to permit free exit of fluids.

gradual or continuous outflow, withdrawal, or expenditure.

something that causes a large or continuous outflow, expenditure, or depletion

Medical expenses were a major drain on his bank account.

an act of draining.

Physical Geography .

an artificial watercourse, as a ditch or trench.

a natural watercourse modified to increase its flow of water. ?

go down the drain

to become worthless or profitless.

to go out of existence; disappear.

verb

fill , pour

noun

cesspool , cloaca , conduit , culvert , ditch , duct , outlet , pipe , sewer , sink , trench , watercourse , abatement , curtailment , cut , cutback , decrement , diminishment , diminution , reduction , slash , slowdown , taper

verb

abate , bankrupt , bleed , bleed dry , catheterize , consume , debilitate , decrease , deplete , devitalize , diminish , dissipate , divert , draft , draw off , drink up , dry , empty , evacuate , exhaust , expend , fatigue , filter off , finish , free from , get last drop , get rid of , gulp down , impoverish , lessen , milk * , pump , pump out , quaff , reduce , sap , siphon , spend , strain , suck , suck dry , swallow , tap , tax , tire out , use up , waste , wear , wear down , weary , withdraw , decline , dwindle , effuse , exude , flow , flow out , leak , leave dry , ooze , osmose , percolate , run off , taper off , trickle , well , draw , let out , ebb , let up , peter , rebate , tail away , taper , draw down , eat up , play out , run through , jade , tire , wear out , canal , channel , filter , gutter , outlet , pipe , sewer , sink , spout , trench , tube , watercourse