| bioreactor |
a device in which living organisms or biological reactions are used to create a product or break down waste. |
| bird call |
a device that produces such an imitation. [1/3 definitions] |
| blade |
a thin, flat part of a device or mechanism that pushes something such as air or water as it moves. [1/6 definitions] |
| blind |
(sometimes pl.) a device in a window to screen out light or give privacy within. [1/12 definitions] |
| blow-by |
a device attached to the crankcase that carries such gases back to the cylinders for combustion. [1/2 definitions] |
| blowtorch |
a portable oil-burning or gas-burning device producing an intense, localized flame suitable for melting or cutting metal. |
| bombard |
a primitive stone-throwing device, the precursor of the modern cannon. [1/4 definitions] |
| bombsight |
a device in aircraft that is used to aim bombs. |
| bonnet |
any protective cap or covering device. [1/6 definitions] |
| booby trap |
a bomb or other explosive device that is well-hidden and wired to explode upon being touched or triggered by an unsuspecting person. [1/2 definitions] |
| booster |
a device for amplifying radio frequency. [1/4 definitions] |
| bootjack |
a forked device used to grip the heel of a boot while the foot is withdrawn. |
| borer |
a machine or other device designed to bore holes. [2/3 definitions] |
| brace |
a device that holds things in position, such as a clamp. [2/10 definitions] |
| brake1 |
a device for slowing or stopping the motion of a vehicle, wheel, or the like, esp. by friction. [1/5 definitions] |
| breeches buoy |
a nautical rescue device consisting of a canvas sling with leg holes that is suspended from a life preserver, used to transfer the rescued person up a rope to a ship. |
| broiler |
a device used for broiling food, such as a grill, pan, or compartment in a stove. [1/2 definitions] |
| broom |
a device for sweeping, consisting of a bundle of straw or bristles attached to a long handle. [1/3 definitions] |
| brush1 |
a device made of stiff hairs, such as nylon or animal hair, fastened into a handle, for grooming, painting, scrubbing, and the like. [1/8 definitions] |
| bubble memory |
a solid-state computer device that stores information, coded into binary digits, in microscopic magnetized areas in sheets, as of garnet. |
| buffer1 |
a device, such as a bumper, that absorbs the force of a collision. [1/6 definitions] |