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speed

(spēd),
The magnitude of velocity without regard to direction. Compare: velocity.

speed

(spēd)
n.
Slang A stimulant drug, especially amphetamine or methamphetamine.
v. sped (spĕd) or speeded, speeding, speeds
v.intr.
Slang To be under the influence of a stimulant drug.

speed

Etymology: AS, spedan, to hasten
1 the rate of change of position with time. Compare velocity.
2 See amphetamines.
3 a reciprocal of the amount of radiation used to produce an image with various components of an x-ray imaging system, such as screens, film, and image intensifiers. There is often a tradeoff between radiation dose to the patient and the overall image quality. Thus a system using little radiation is "fast," whereas one requiring more radiation is "slow."
4 the amount of exposure of film to light or x-rays needed to produce a desired image. X-ray film speed usually is indicated as the reciprocal of the exposure in roentgens necessary to produce a density of 1 above the base and fog levels. See also fogged film fault.
Drug slang A regional street synonym for amphetamine, which may also refer to methamphetamine and crack cocaine
Vox populi Rapidity of movement

SPEED

Cardiology A clinical trial–Strategies for Patency Enhancement in the Emergency Department

speed

Drug slang A street synonym for amphetamine, which may also refer to methamphetamine and crack

speed

(spēd)
The magnitude of velocity without regard to direction.
Compare: velocity

speed

the change of distance with respect to time. A scalar quantity (i.e. having no directional component). linear speed is usually measured in metres per second (m.s-1), kilometres per hour (km.h-1) or miles per hour (mph), and angular speed in degrees per second (°.s-1) or radians per second (rad.s-1) See also velocity.

speed,

n the relative rapidity of action; rate of motion.
speed, film,
speed, high,
n a relatively great rapidity of motion. In cavity preparations, rotary instruments are classified according to the number of revolutions per minute (rpm) made by the cutting tool. Designation of each speed range presently varies. In general, conventional speed is 10,000 to 60,000 rpm, high speed is 60,000 to 100,000 rpm, and ultrahigh speed is more than 100,000 rpm. May also be used to describe an evacuation system.
speed of light,
n a speed of 186,300 miles/sec.
speed of radiation,
References in periodicals archive ?
But it's not just super speeders who open it up on that segment of highway.
Multnomah County sheriff's Deputy Robbyn Matsushima said she was clocking speeders along Interstate 84 east of Troutdale on Thursday morning when she saw a black sedan headed her way.
Speeding can generally be attributed to simple human nature, Takallou said: Speeders have developed bad habits, and it will take a concerted effort to change them.
But just last week, the Grampian Police constable was drafted in to help a two-week national crackdown on speeders.
After the officer caught up to the speeder, another motorist passed them both at more than 90 mph.
Police clocked over 13,000 traffic offences islandwide between October 2 and November 1, just over 6,000 of which were for speeding, which works out on average at 200 speeders a day.
TWO drivers clocked doing 146mph on the M25 in Kent topped a list of motorway speeders last year.
Clobber the 30mph speeders hard and leave as is for the motorway speeders.
The speeders were caught by both mobile and fixed speed cameras on various roads.
The speeders have been snared by volunteers in Crossford, Fife, wearing Community Speedwatch In Operation vests and equipped with radar gear from the local police force.
Plenty of rail travellers are seriously hard-up, if not in serious debt, which speeders in gas-guzzlers clearly aren't; they also have greener credentials.