Search Result for "gear box":
Wordnet 3.0

NOUN (1)

1. the shell (metal casing) in which a train of gears is sealed;
[syn: gearbox, gear box, gear case]



WordNet (r) 3.0 (2006):

gear box
    n 1: the shell (metal casing) in which a train of gears is
         sealed [syn: gearbox, gear box, gear case]