1. an inlet with two or more couplings to which a hose can be attached so that fire engines can pump water into the sprinkler system of a building; [syn: siamese, siamese connection]
WordNet (r) 3.0 (2006):
siamese connection
n 1: an inlet with two or more couplings to which a hose can be
attached so that fire engines can pump water into the
sprinkler system of a building [syn: siamese, siamese
connection]