English dictionary
underdrain
Definitions, examples, synonyms and antonyms from WordNet 3.0.
noun
-
An underground drain or trench with openings through which the water may percolate from the soil or ground above.
Source: webster1913
verb
-
To drain by forming an underdrain or underdrains in; as, to <i>underdrain</i> land.
Source: webster1913