Drain

To draw off by degrees; to cause to flow gradually out or off; hence, to cause the exhaustion of.

To exhaust of liquid contents by drawing them off; to make gradually dry or empty; to remove surface water, as from streets, by gutters, etc.; to deprive of moisture; hence, to exhaust; to empty of wealth, resources, or the like; as, to drain a country of its specie.

To filter.

To flow gradually; as, the water of low ground drains off.

To become emptied of liquor by flowing or dropping; as, let the vessel stand and drain.

The act of draining, or of drawing off; gradual and continuous outflow or withdrawal; as, the drain of specie from a country.

That means of which anything is drained; a channel; a trench; a water course; a sewer; a sink.

The grain from the mashing tub; as, brewers' drains.

tube inserted into a body cavity (as during surgery) to remove unwanted material

emptying something accomplished by allowing liquid to run out of it

a gradual depletion of energy or resources; "a drain on resources"; "a drain of young talent by emigration"