1. (

• drain ,
• run_out ,

) flow off gradually; "The rain water drains into this big vat" ;

2. (

• drain

) deplete of resources; "The exercise class drains me of energy" ;

3. (

• drain ,

) empty of liquid; drain the liquid from; "We drained the oil tank" ;

4. (

• enfeeble ,
• debilitate ,
• drain ,

) make weak; "Life in the camp drained him" ;

1. (

• draining ,
• exhausting

) having a debilitating effect; "an exhausting job in the hot sun" ;