emptying something accomplished by allowing liquid to run out of it tube inserted into a body cavity (as during surgery) to remove unwanted material a pipe through which liquid is carried away a gradual depletion of energy or resources
"a drain on resources"
"a drain of young talent by emigration" flow off gradually
"The rain water drains into this big vat" deplete of resources
"The exercise class drains me of energy" empty of liquid
