change-up
change-of-pace
change-of-pace ball
off-speed pitch | a baseball thrown with little velocity when the batter is expecting a fastball |
speed
speeding
hurrying | changing location rapidly |
| speed skating | competitive skating on speed skates (usually around an oval course) |
headroom
dynamic headroom | the capacity of a system to reproduce loud sounds without distortion |
amphetamine
pep pill
upper speed | a central nervous system stimulant that increases energy and decreases appetite, used to treat narcolepsy and some forms of depression |
artificial horizon
gyro horizon
flight indicator | a navigational instrument based on a gyroscope, it artificially provides a simulated horizon for the pilot |
fuel gauge
fuel indicator | an indicator of the amount of fuel remaining in a vehicle |
| indicator | a device for showing the operating condition of some system |
pilot light
pilot lamp
indicator lamp | indicator consisting of a light to indicate whether power is on or a motor is in operation |
| speed bump | a hindrance to speeding created by a crosswise ridge in the surface of a roadway |
speedometer
speed indicator | a meter fixed to a vehicle that measures and displays its speed |
speed skate
racing skate | an ice skate with a long blade, worn for racing |
speed
swiftness
fastness | a rate (usually rapid) at which something happens, the project advanced with gratifying speed |
| execution speed | (computer science) the speed with which a computational device can execute instructions, measured in MIPS |
| speed trap | a trap arranged on a roadway for catching speeders |
index index number
indicant
indicator | a number or ratio (a value on a scale of measurement) derived from a series of observed facts, can reveal relative changes as a function of time |
| leading indicator | one of indicators for different sections of the economy, used by the Department of Commerce to predict economic trends in the near future |
| speed limit | regulation establishing the top speed permitted on a given road |
| indicator | a signal for attracting attention |
blinker
turn signal
turn indicator
trafficator | a blinking light on a motor vehicle that indicates the direction in which the vehicle is about to turn |
moral force
dynamic | an efficient incentive, they hoped it would act as a spiritual dynamic on all churches |
motorcycle cop
motorcycle policeman
speed cop | a policeman who rides a motorcycle (and who checks the speeds of motorists) |
speeder
speed demon | a driver who exceeds the safe speed limit |
| speed freak | addict who habitually uses stimulant drugs (especially amphetamines) |
speedskater
speed skater | an ice-skater who races competitively, usually around an oval course |
dynamic electricity
current electricity | a flow of electric charge |
coefficient of viscosity
absolute viscosity
dynamic viscosity | a measure of the resistance to flow of a fluid under an applied force |
focal ratio
f number
stop number
speed | the ratio of the focal length to the diameter of a (camera) lens system |
| dynamic balance | (aeronautics) the state of equilibrium in which centrifugal forces due to a rotating mass (e.g., a propeller) do not produce force in the shaft and so vibration is reduced |
| absorption indicator | an indicator used in reactions that involve precipitation |
| acid-base indicator | an indicator that changes color on going from acidic to basic solutions |
high-speed steel
hot-work steel | an alloy steel that remains hard at a red heat, used to make metalutting tools |
| indicator | (chemistry) a substance that changes color to indicate the presence of some ion or substance, can be used to indicate the completion of a chemical reaction or (in medicine) to test for a particular reaction |
| oxidationeduction indicator | an indicator that shows a reversible color change between oxidized and reduced forms |
speed
velocity | distance travelled per unit time |
speed of light
light speed
c | the speed at which light travels in a vacuum, the constancy and universality of the speed of light is recognized by defining it to be exactly ,, meters per second |
accelerate
speed up
speed
quicken | move faster, The car accelerated |
| accelerate speed speed up | cause to move faster, He accelerated the car |
| speed skate | race on skates |
travel rapidly
speed
hurry
zip | move very fast, The runner zipped past us at breakneck speed |
| speed | travel at an excessive or illegal velocity, I got a ticket for speeding |
c rush
hotfoot
hasten
hie
speed race
pelt along
rush along
cannonball along
bucket along
belt along
step on it | move fast, He rushed down the hall to receive his guests, The cars raced down the street |
active
dynamic | (used of verbs (e.g. `to run') and participial adjectives (e.g. `running' in `running water')) expressing action rather than a state of being |
dynamic
dynamical | characterized by action or forcefulness or force of personality, a dynamic market, a dynamic speaker, the dynamic president of the firm |
| high-speed high-velocity | operating at high speed, a high-speed food processor, a high-velocity shell |
| dynamic | of or relating to dynamics |