(Mech.) A kind of gear in which the two wheels working together lie in different planes, and have their teeth cut at right angles to the surfaces of two cones whose apices coincide with the point where the axes of the wheels would meet. [ 1913 Webster ]

. (Mach.) A gear by means of which the speed of machinery or of a vehicle may be changed while that of the propelling engine or motor remains constant; -- called also
change-speed gear. [ Webster 1913 Suppl. ]

. (Mach.) A change-speed gear in which the gears are changed by sliding endwise. [ Webster 1913 Suppl. ]

n. 1. A harness for draught horses. [ 1913 Webster ]

2. (Railroad) The means or parts by which cars are connected to be drawn. [ 1913 Webster ]

n. [ OE. gere, ger, AS. gearwe clothing, adornment, armor, fr. gearo, gearu, ready, yare; akin to OHG. garawī, garwī ornament, dress. See Yare, and cf. Garb dress. ] 1. Clothing; garments; ornaments. [ 1913 Webster ]

Array thyself in thy most gorgeous gear. Spenser. [ 1913 Webster ]

2. Goods; property; household stuff. Chaucer. [ 1913 Webster ]

Homely gear and common ware. Robynson (More's Utopia). [ 1913 Webster ]

3. Whatever is prepared for use or wear; manufactured stuff or material. [ 1913 Webster ]

Clad in a vesture of unknown gear. Spenser. [ 1913 Webster ]

4. The harness of horses or cattle; trapping. [ 1913 Webster ]

5. Warlike accouterments. [ Scot. ] Jamieson. [ 1913 Webster ]

6. Manner; custom; behavior. [ Obs. ] Chaucer. [ 1913 Webster ]

7. Business matters; affairs; concern. [ Obs. ] [ 1913 Webster ]

Thus go they both together to their gear. Spenser. [ 1913 Webster ]

8. (Mech.) (a) A toothed wheel, or cogwheel; as, a spur gear, or a bevel gear; also, toothed wheels, collectively. (b) An apparatus for performing a special function; gearing; as, the feed gear of a lathe. (c) Engagement of parts with each other; as, in gear; out of gear. [ 1913 Webster ]

9. pl. (Naut.) See 1st Jeer (b). [ 1913 Webster ]

10. Anything worthless; stuff; nonsense; rubbish. [ Obs. or Prov. Eng. ] Wright. [ 1913 Webster ]

That servant of his that confessed and uttered this gear was an honest man. Latimer. [ 1913 Webster ]

Bever gear. See Bevel gear. --
Core gear, a mortise gear, or its skeleton. See Mortise wheel, under Mortise. --
Expansion gear (Steam Engine), the arrangement of parts for cutting off steam at a certain part of the stroke, so as to leave it to act upon the piston expansively; the cut-off. See under Expansion. --
Feed gear. See Feed motion, under Feed, n. --
Gear cutter, a machine or tool for forming the teeth of gear wheels by cutting. --
Gear wheel, any cogwheel. --
Running gear. See under Running. --
To throw in gear or
To throw out of gear (Mach.), to connect or disconnect (wheelwork or couplings, etc.); to put in, or out of, working relation. [ 1913 Webster ]

pos>v. t. [ imp. & p. p. Geared 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 ]

v. i. (Mach.) To be in, or come into, gear. [ 1913 Webster ]

n. the metal casing in which a train of gears is sealed.
Syn. -- gear case. [ WordNet 1.5 ]

n. 1. Harness. [ 1913 Webster ]

2. (Mach.) The parts by which motion imparted to one portion of an engine or machine is transmitted to another, considered collectively; as, the valve gearing of a locomotive engine; belt gearing; esp., a train of wheels for transmitting and varying motion in machinery. [ 1913 Webster ]

Frictional gearing. See under Frictional. --
Gearing chain, an endless chain transmitting motion from one sprocket wheel to another. See Illust. of Chain wheel. --
Spur gearing, gearing in which the teeth or cogs are ranged round either the concave or the convex surface (properly the latter) of a cylindrical wheel; -- for transmitting motion between parallel shafts, etc. [ 1913 Webster ]

n. a connected set of rotating gears by which force is transmitted or motion or torque is changed.
Syn. -- gearing, gears, power train, train. [ WordNet 1.5 ]

n. To prepare (for an event or activity); as, to gear up for the election campaign. [ PJC ]

or /mhw>, n. 1. Headdress. [ 1913 Webster ]

2. Apparatus above ground at the mouth of a mine or deep well. [ 1913 Webster ]

[ So called from the inventor. ] (Mach.) Spur gearing having teeth slanting across the face of the wheel, sometimes slanting in opposite directions from the middle. [ 1913 Webster ]

. (Mach.) A steering gear, esp. for an automobile, not affected by the road wheels, as when they strike an obstacle side ways, but easily controlled by the hand wheel or steering lever. [ Webster 1913 Suppl. ]

n. The wheels and attached structures under an airplane that support it and allow it to move when on the ground; also, the floats or pontoons of an amphibious airplane together with their supporting structures. Landing gear may be fixed rigidly in place, or retractable when in flight. [ PJC ]

v. t. [ 1st pref. un- + gear. ] To strip of gear; to unharness; to throw out of gear. [ 1913 Webster ]

. A friction gear wheel with wedge-shaped circumferential grooves. -- Wedge gearing. [ Webster 1913 Suppl. ]