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Having interstices between the teeth. Dryden.

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, or out of, gear (Mach.), to connect or disconnect (wheelwork or couplings, etc.); to put in, or out of, working r…

cket 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.

A rotatory cylinder, covered with wire teeth or teasels, for teaseling woolen cloth. Gig machine, Gigging machine, Gig mill, or Napping machine. See Gig, 4. -- Gig saw. See Jig saw.

the dry plains of Arizona, New Mexico, etc. It is the only lizard known to have venomous teeth.

A stomach armed with chitinous or shelly plates or teeth, as in certain insects and mollusks. Gizzard shad (Zoöl.), an American herring (Dorosoma cepedianum) resembling the shad, but of little value. -- To fret the gizzard, to harass; to vex one's self; to worry. [Low] Hudibras. -- To stick in one's gizzard, to be di…

armadillos. It was as large as an ox, was covered with tessellated scales, and had fluted teeth. Owen.

To strike together, as in anger or pain; as, to gnash the teeth.

tle by little, with effort; to wear or eat away by scraping or continuous biting with the teeth; to nibble at. His bones clean picked; his very bones they gnaw. Dryden.

ob xxxiv. 21. Going barrel. (Horology) (a) A barrel containing the mainspring, and having teeth on its periphery to drive the train. (b) A device for maintaining a force to drive the train while the timepiece is being wound up. -- Going forth. (Script.) (a) Outlet; way of exit. "Every going forth of the sanctuary." Ez…

A disease of the teeth, which causes them to loosen and fall out of their sockets.

or immovable articulation where a hard part is received into the cavity of a bone, as the teeth into the jaws.

roughly or harshly, as one body against another, causing a harsh sound; as, to grate the teeth; to produce (a harsh sound) by rubbing. On their hinges grate Harsh thunder. Milton.

To show the teeth, as a dog; to shsrl.

To reduce to powder by friction, as in a mill, or with the teeth; to crush into small fragments; to produce as by the action of millstones. Take the millstones, and grind meal. Is. xivii. 2.

One of the double teeth, used to grind or masticate the food; a molar.

imp. of Grin, v. i., 1. [He] grinte with his teeth, so was he wroth. Chaucer.

To grind; to rub harshly together; to grate; as, to grit the teeth. [Collog.]

A concave cut made in the teeth of some saw blades.

The dense tissues which invest the teeth, and cover the adjacent parts of the jaws. Gum rash (Med.), strophulus in a teething child; red gum. -- Gum stick, a smooth hard substance for children to bite upon while teething.