rotor

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('tər) pronunciation
n.
  1. A rotating part of an electrical or mechanical device.
  2. An assembly of rotating horizontal airfoils, as that of a helicopter.

[Contraction of ROTATOR.]


n. a rotary part of a machine or vehicle, especially a hub with a number of radiating airfoils that is rotated in an approximately horizontal plane to provide the lift for a rotary-wing aircraft.

See the Introduction, Abbreviations and Pronunciation for further details.

i. A system of rotating airfoils whose primary function is to produce lift (e.g., propellers and helicopter rotors).
ii. The portion of a turbine or compressor that spins.
iii. A rotating disc or drum to which a series of blades are attached (e.g., compressor, turbine, turbopump, alternator).

Picture 1 of rotor


iv. A local air mass rotating about a substantially horizontal axis.

  1. the part of a centrifuge that holds the material to be subjected to centrifugal force. It generally has compartments that house tubes or bottles, and these may either be set at a fixed angle with respect to the axis of rotation, or designed to allow the containers to swing out into a horizontal position during centrifugation. Centrifugal force is generated by rotating the rotor about its axis.
  2. the part of the H+-transporting ATP synthase that rotates during flow of hydrons through the F0 part of the complex. Compare stator.

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Random House Word Menu by Stephen Glazier
For a list of words related to rotor, see:

  See crossword solutions for the clue Rotor.

Rotor may refer to:

  • A rotating part of a mechanical device, for example in an electric motor, generator, alternator or pump.

In engineering:

  • Rotor (electric), the non-stationary part of an alternator or electric motor, operating with a stationary element called the stator.
  • Helicopter rotor, the rotary wing(s) of a rotorcraft such as a helicopter
  • ROTOR, a former radar project in the UK following the Second World War
  • Rotor (turbine), the rotor of a turbine powered by fluid pressure
  • Rotor (crank), a variable-angle bicycle crank
  • Rotor (brake), the disc of a disc brake, in U.S. terminology
  • Rotor (brake mechanism), a device that allows the handlebars and fork to revolve indefinitely without tangling the rear brake cable
  • Rotor (distributor), a component of the ignition system of an internal combustion engine
  • Rotor (engine), the powered part of a pistonless rotary engine
  • Rotor (antenna), an electric motor that rotates an antenna to the direction of transmission or reception

In computing:

  • Rotor machine, the rotating wheels used in certain cipher machines, such as the German Enigma machine
  • Rotor (software project), the former code name for Microsoft's shared source implementation of its Common Language Infrastructure

In medicine:

In biology and chemistry:

  • The rotating part of a centrifuge, which also holds the samples

In other fields:


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Dansk (Danish)
n. - rotor, vingehjul, skovlhjul

Nederlands (Dutch)
rotor

Français (French)
n. - rotor

Deutsch (German)
n. - Rotor

Ελληνική (Greek)
n. - (μηχαν.) δρομέας, ρότορας, στροφείο

Italiano (Italian)
rotore, girante, distributore, spazzola

Português (Portuguese)
n. - rotor (m)

Русский (Russian)
ротор, рабочее колесо, несущий винт

Español (Spanish)
n. - rotor

Svenska (Swedish)
n. - rotor

中文(简体)(Chinese (Simplified))
转子, 转动体, 回转轴

中文(繁體)(Chinese (Traditional))
n. - 轉子, 轉動體, 回轉軸

한국어 (Korean)
n. - 죽차, 회전자, 회전 날개

日本語 (Japanese)
n. - 羽根車, 回転子

العربيه (Arabic)
‏(الاسم) الدوار‏

עברית (Hebrew)
n. - ‮מערכת מדחפים, רוטור, חלק מסתובב, חוגה‬


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differential selsyn (electricity)
motor meter (engineering)
H-2