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raceway

 - 7 dictionary results

race⋅way

[reys-wey]
–noun
1. Chiefly British. a passage or channel for water, as a millrace.
2. a racetrack on which harness races are held.
3. Electricity. a channel for protecting and holding electrical wires and cables, esp. a metal rectangular tube used for such purposes.
4. Machinery. race 1 (def. 11).

Origin:
1820–30; race 1 + way 1

race

1[reys] noun, verb, raced, rac⋅ing.
–noun
1. a contest of speed, as in running, riding, driving, or sailing.
2. races, a series of races, usually of horses or dogs, run at a set time over a regular course: They spent a day at the races.
3. any contest or competition, esp. to achieve superiority: the arms race; the presidential race.
4. urgent need, responsibility, effort, etc., as when time is short or a solution is imperative: the race to find an effective vaccine.
5. onward movement; an onward or regular course.
6. the course of time.
7. the course of life or a part of life.
8. Geology.
a. a strong or rapid current of water, as in the sea or a river.
b. the channel or bed of such a current or of any stream.
9. an artificial channel leading water to or from a place where its energy is utilized.
10. the current of water in such a channel.
11. Also called raceway. Machinery. a channel, groove, or the like, for sliding or rolling a part or parts, as the balls of a ball bearing.
12. Textiles.
a. the float between adjacent rows of pile.
b. race plate.
–verb (used without object)
13. to engage in a contest of speed; run a race.
14. to run horses or dogs in races; engage in or practice horse racing or dog racing.
15. to run, move, or go swiftly.
16. (of an engine, wheel, etc.) to run with undue or uncontrolled speed when the load is diminished without corresponding diminution of fuel, force, etc.
–verb (used with object)
17. to run a race against; try to beat in a contest of speed: I'll race you to the water.
18. to enter (a horse, car, track team, or the like) in a race or races.
19. to cause to run, move, or go at high speed: to race a motor.

Origin:
1250–1300; (n.) ME ras(e) < ON rās a running, race (c. OE rǣs a running); (v.) ME rasen, deriv. of the n. (cf. ON rasa to rush headlong)
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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race 2   (rās)   
n.  
  1. Sports

    1. A competition of speed, as in running or riding.

    2. races A series of such competitions held at a specified time on a regular course: a fan of the dog races.

    3. A strong or swift current of water.

    4. The channel of such a current.

    5. An artificial channel built to transport water and use its energy. Also called raceway.

  2. An extended competition in which participants struggle like runners to be the winner: the presidential race.

  3. Steady or rapid onward movement: the race of time.

    1. A strong or swift current of water.

    2. The channel of such a current.

    3. An artificial channel built to transport water and use its energy. Also called raceway.

  4. A groovelike part of a machine in which a moving part slides or rolls.

  5. See slipstream.

v.   raced, rac·ing, rac·es

v.   intr.
  1. Sports To compete in a contest of speed.

  2. To move rapidly or at top speed: We raced home. My heart was racing with fear.

  3. To run too rapidly due to decreased resistance or unnecessary provision of fuel: adjusted the idle to keep the engine from racing.

v.   tr.
  1. Sports

    1. To compete against in a race.

    2. To cause to compete in a race: She races horses for a living.

  2. To transport rapidly or at top speed; rush: raced the injured motorist to the hospital.

  3. To cause (an engine with the gears disengaged, for example) to run swiftly or too swiftly.


[Middle English ras, from Old Norse rās, rush, running; see ers- in Indo-European roots.]
race·way   (rās'wā')   
n.  
  1. A course or track for racing, especially harness racing.

  2. A tube that encloses and protects electric wires.

  3. See race2.

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: race
Pronunciation: 'rAs
Function: noun
1 a : an actually or potentially interbreeding group within a species; also : ataxonomic category (as a subspecies) representing such a group b : BREED
2 : one of thethree, four, or five divisions based on inherited physical characteristics into which human beings are usually divided
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
Cite This Source
Medical Dictionary

race (rās)
n.

  1. A local geographic or global human population distinguished as a more or less distinct group by genetically transmitted physical characteristics.

  2. A population of organisms differing from others of the same species in the frequency of hereditary traits; a subspecies.

  3. A breed or strain, as of domestic animals.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Science Dictionary
race   (rās)  Pronunciation Key 
    1. An interbreeding, usually geographically isolated population of organisms differing from other populations of the same species in the frequency of hereditary traits. A race that has been given formal taxonomic recognition is known as a subspecies.

    2. A breed or strain, as of domestic animals.

  1. Any of several extensive human populations associated with broadly defined regions of the world and distinguished from one another on the basis of inheritable physical characteristics, traditionally conceived as including such traits as pigmentation, hair texture, and facial features. Because the number of genes responsible for such physical variations is tiny in comparison to the size of the human genome and because genetic variation among members of a traditionally recognized racial group is generally as great as between two such groups, most scientists now consider race to be primarily a social rather than a scientific concept.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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