Search Result for "riser main":
Wordnet 3.0

NOUN (1)

1. a vertical pipe in a building;
[syn: riser, riser pipe, riser pipeline, riser main]



WordNet (r) 3.0 (2006):

riser main
    n 1: a vertical pipe in a building [syn: riser, riser pipe,
         riser pipeline, riser main]