| aperture |
an opening, often adjustable, that controls the amount of light reaching the lens on a camera or other optical instrument. [1/2 definitions] |
| bevel |
an instrument with an adjustable arm used for drawing angles or setting a surface at an angle. [1/3 definitions] |
| braces |
(chiefly British) a pair of adjustable straps that are designed to support trousers, worn over the shoulders and attached to the trousers at the front and back of the waist; suspenders. [1/2 definitions] |
| composing stick |
a hand-held, adjustable metal tray in which a compositor sets type. |
| compound microscope |
a microscope in which two lenses of differing focal lengths are mounted in an adjustable tube. |
| cramp2 |
a device for holding or clamping buildings materials together, consisting of a bar with fixed or adjustable arms at each end. [1/6 definitions] |
| earmuff |
one of a pair of protective pads joined by an adjustable headband and worn over the ears, as against cold. |
| metronome |
an adjustable device that marks regular intervals with rhythmic clicking sound, used by musicians during practice. |
| Morris chair |
a large chair with removable cushions and an adjustable back. |
| music stand |
a vertically adjustable rack for holding sheets of music for a performer or conductor. |
| parallel bars |
a set of two horizontal poles parallel to each other and supported by adjustable upright posts, on which gymnasts perform various acrobatic routines. [1/2 definitions] |
| plane2 |
any of various carpentry tools with an adjustable blade, used to make surfaces of wood smooth, true, grooved, or the like. [1/3 definitions] |
| poppet |
in a lathe, the adjustable part that holds the work; tailstock or headstock; poppethead. [1/2 definitions] |
| rheostat |
an adjustable resistor used to modulate the amount of electrical current flowing through a circuit. |
| rolling |
not set or fixed, but rather adjustable over time, as a deadline or date. [1/7 definitions] |
| snare2 |
any of the adjustable strings or wires that are stretched over the bottom skin of a snare drum. |
| suspenders |
a pair of adjustable straps that are designed to support trousers, worn over the shoulders and attached to the trousers at the front and back of the waist. [1/2 definitions] |
| tailstock |
on a lathe or grinder, the adjustable piece that contains the dead center and helps hold the work. |
| track lighting |
a means of illuminating a room or the like with adjustable lights that are arranged along a narrow electrified track on a wall or ceiling. |
| tripod |
a usu. adjustable three-legged stand or support, as for a camera or telescope. |
| wrench |
a tool, often with adjustable jaws, that is used to grip and turn an object, often one threaded into another, such as a bolt or pipe. [1/13 definitions] |