| accelerate |
to increase the speed or rate of. [2/4 definitions] |
| accelerator |
a mechanical device that regulates the speed of something, esp. the gas pedal of a car. [1/3 definitions] |
| airspeed |
the speed of a flying object, esp. an aircraft, relative to the surrounding air. |
| alacrity |
speed or liveliness. [1/2 definitions] |
| anemograph |
an instrument used to measure and record the speed of the wind. |
| anemometer |
an instrument that measures the speed and force of the wind. |
| arista |
a prominent bristle that extends from the antenna of certain dipterous insects and regulates speed. [1/2 definitions] |
| at full blast |
(informal) at maximum speed or capacity. |
| at full tilt |
at maximum speed. |
| back road |
(often pl.) a country road or local road that avoids traffic as well as high speed travel. |
| ballistic missile |
a long-range missile that reaches its target by falling freely at extremely high speed along a precalculated trajectory. |
| battle cruiser |
a warship of great speed and firepower, with lighter armor than that of a battleship. |
| Beaufort scale |
a scale that rates the force and speed of wind from 0, "calm," to 12 or more, "hurricane". |
| Bernoulli effect |
the decrease in a fluid's pressure as its speed increases. |
| beta particle |
a high-speed positron or electron ejected from a nucleus in radioactive decay or fission. |
| betatron |
in physics, an electron accelerator in which the speed of the electrons is increased to high energies, from a few million to a few hundred million electron volts, by the action of a rapidly changing magnetic field. |
| blue streak |
(informal) something moving with or as with the speed of lightning. [1/2 definitions] |
| broadband |
of, pertaining to, or using a type of high-speed data transmission that allows signals at different frequencies, such as audio and video, to be transmitted simultaneously along a single wire. [1/2 definitions] |
| build a fire under |
(informal) to urge to action, speed, or the like. |
| bullet train |
a high-speed train, especially one of the type invented in Japan. |
| capstan |
the revolving spindle in a tape recorder around which magnetic tape is wound and that regulates the speed at which the tape moves. [1/2 definitions] |