Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun drainage_system

1 sense of drainage system

Sense 1
drainage system -- (a system of watercourses or drains for carrying off excess water)
       => system -- (instrumentality that combines interrelated interacting artifacts designed to work as a coherent entity; "he bought a new stereo system"; "the system consists of a motor and a small computer")