| Aqua-Lung |
trademark for an underwater breathing device similar to a scuba. |
| -arium |
a place or device associated with or pertaining to; -orium. |
| aspirator |
a device that removes gas or fluids by suction, esp. one used to evacuate a body cavity. |
| atomic clock |
an extremely accurate timekeeping device regulated by the reliably constant frequency at which atoms of certain highly reactive substances absorb or emit electromagnetic radiation. |
| atomizer |
a device that converts a liquid, esp. a medicine or perfume, into a spray. |
| attachment |
a supplementary device that can be fastened onto the main device; accessory. [1/6 definitions] |
| attenuator |
a device that reduces the strength of an electrical signal. |
| audio |
a particular sound recording, often giving instructions, information, or a sample of a longer recording, made to be heard on a computer or other electronic device. [1/4 definitions] |
| baffle |
a device for obstructing, deflecting, or controlling the movement of gases, liquid, sound waves, or light. [1/4 definitions] |
| baking |
the act or process of a person or device that bakes. [1/2 definitions] |
| balance |
a device for weighing; scales. [1/8 definitions] |
| ball cock |
a device used to regulate the supply of water in a tank or toilet, consisting of a lever connected to a floating ball that shuts a valve when raised and opens it when lowered. |
| battering ram |
any bar, beam, or device used in a similar way, as by police, firefighters, or rescue workers. [1/2 definitions] |
| battery |
a device that generates electricity by means of chemical reactions. [1/5 definitions] |
| beam |
the bar of a weighing device, which holds weighing pans or scales at either end. [1/8 definitions] |
| beeper |
a device that emits a beeping sound when it receives a radio signal, usu. used for paging those who carry it. |
| bellows |
(used with a sing. or pl. verb) a device with a flexible, valved air chamber that can be expanded to draw in air and compressed to expel it through a nozzle, used to blow air on a fire or to sound a musical instrument. [2/3 definitions] |
| bias |
a voltage applied to an electronic device, such as a transistor or a vacuum tube, to establish a reference level of operation. [1/8 definitions] |
| binder |
a large, sturdy notebook cover that contains a device for holding loose papers. [1/4 definitions] |
| binding |
a fastening device attached to a ski, designed to grip the ski boot. [1/6 definitions] |
| bioreactor |
a device in which living organisms or biological reactions are used to create a product or break down waste. |