counterdrain

English

Etymology

counter- +‎ drain

Noun

counterdrain (plural counterdrains)

1. A drain at the foot of the embankment of a canal or watercourse, for carrying off the water that may soak through.
2. (surgery) An inserted device or other means by which excess fluid is drained off from a part of the body in which it accumulates.

Verb

counterdrain (third-person singular simple present counterdrains, present participle counterdraining, simple past and past participle counterdrained)

1. (surgery) To drain off excess fluid from a part of the body in which it accumulates.