From WordNet (r) 2.0 (August 2003) [wn]:
geared
adj : equipped with or connected by gears or having gears engaged
[ant: ungeared]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Gear \Gear\ (g[=e]r) v. t. [imp. & p. p. Geared (g[=e]rd); p.
pr. & vb. n. Gearing.]
1. To dress; to put gear on; to harness.
[1913 Webster]
2. (Mach.) To provide with gearing.
[1913 Webster]
3. To adapt toward some specific purpose; as, they geared
their advertising for maximum effect among teenagers.
[PJC]
Double geared, driven through twofold compound gearing, to
increase the force or speed; -- said of a machine.
[1913 Webster]