- 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.
Origin of drain
Examples from the Web for undrained
These wooden huts were undrained, dark and dirty to a remarkable degree.A Labrador Doctor
Wilfred Thomason Grenfell
It will not then be surprising that undrained soils are, in the language of the farmer, "cold."Farm drainage
Henry Flagg French
He found the city in 1787 in a wretched condition, unlighted, undrained, unpaved.Mexico
Most of this country was undrained, and snipe were in thousands.
See that those in undrained bowls are just moist, but not wet.The Children's Book of Gardening
Mrs. Alfred Sidgwick
- a pipe or channel that carries off water, sewage, etc
- an instance or cause of continuous diminution in resources or energy; depletion
- surgery a device, such as a tube, for insertion into a wound, incision, or bodily cavity to drain off pus, etc
- electronics the electrode region in a field-effect transistor into which majority carriers flow from the interelectrode conductivity channel
- down the drain wasted
- (tr often foll by off) to draw off or remove (liquid) fromto drain water from vegetables; to drain vegetables
- (intr often foll by away) to flow (away) or filter (off)
- (intr) to dry or be emptied as a result of liquid running off or flowing awayleave the dishes to drain
- (tr) to drink the entire contents of (a glass, cup, etc)
- (tr) to consume or make constant demands on (resources, energy, etc); exhaust; sap
- (intr) to disappear or leave, esp graduallythe colour drained from his face
- (tr) (of a river, etc) to carry off the surface water from (an area)
- (intr) (of an area) to discharge its surface water into rivers, streams, etc
Word Origin and History for undrained
Old English dreahnian "to drain, strain out," from Proto-Germanic *dreug-, source of drought, dry, giving the English word originally a sense of "make dry." Figurative meaning of "exhaust" is attested from 1650s. The word is not found in surviving texts between late Old English and the 1500s. Related: Drained; draining.
1550s, from drain (v.).
- A device, such as a tube, inserted into the opening of a wound or into a body or dental cavity to facilitate discharge of fluid or purulent material.
- To draw off a liquid gradually as it forms.