Home › Words › O › overdrainageoverdrainageoverdrainage means excessive drainage.EtymologyFrom over- + drainage.nounExcessive drainage.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.overdrain 85% match — To drain excessively. vs overdrainage →overirrigation 69% match — excessive irrigation vs overdrainage →underdrainage 68% match — Drainage by means of an underdrain. vs overdrainage →counterdrain 67% match — A drain at the foot of the embankment of a canal or watercourse, for carrying off the water that may soak through. vs overdrainage →draining 66% match — Designed and/or used for drainage. vs overdrainage →overinfusion 66% match — Excessive infusion vs overdrainage →overabsorption 65% match — Excessive absorption. vs overdrainage →overlactation 65% match — Excessive lactation. vs overdrainage →