armature

[ ahr-muh-cher ]

noun
  1. Biology. the protective covering of an animal or plant, or any part serving for defense or offense.

  1. Electricity.

    • the part of an electric machine that includes the main current-carrying winding and in which the electromotive force is induced.

    • the pivoted part of an electric device, as a buzzer or relay, that is activated by a magnetic field.

    • the iron or steel applied across the poles of a permanent magnet to close it, or across the poles of an electromagnet to transmit a mechanical force.

  2. Sculpture. a skeletal framework built as a support on which a clay, wax, or plaster figure is constructed.

Origin of armature

1
1535–45; (<Middle French ) <Latin armātūra an outfit, armor, equivalent to armāt(us) equipped (see arm2, -ate1) + -ūra-ure

Words that may be confused with armature

Words Nearby armature

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use armature in a sentence

  • A very slight movement of the armature disc J, therefore, suffices to open to the full extent two long exhaust passages.

  • Four catch pins were fastened on the rim of the disk to engage a catch pin on the armature of the magnet.

  • The armature may now be soldered to this shaft, its left-hand surface being flush with the ends of the magnet.

  • If the armature and its connections are also used from the buzzer, the height of the coils must be taken in consideration.

  • The other binding post H is connected to the bracket B supporting the armature spring.

British Dictionary definitions for armature

armature

/ (ˈɑːmətjʊə) /


noun
  1. a revolving structure in an electric motor or generator, wound with the coils that carry the current

  2. any part of an electric machine or device that moves under the influence of a magnetic field or within which an electromotive force is induced

  1. Also called: keeper a soft iron or steel bar placed across the poles of a permanent magnet to close the magnetic circuit

  2. such a bar placed across the poles of an electromagnet to transmit mechanical force

  3. sculpture a framework to support the clay or other material used in modelling

  4. the protective outer covering of an animal or plant

  5. archaic armour

Origin of armature

1
C15: from Latin armātūra armour, equipment, from armāre to furnish with equipment; see arm ²

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for armature

armature

[ ärmə-chər ]


  1. The part of an electric motor or generator that consists of wire wound around an iron core and carries an electric current. In motors and generators using direct current, the armature rotates within a magnetic field; in motors and generators using alternating current a magnetic field is rotated about the armature.

  2. A piece of soft iron connecting the poles of a magnet.

  1. The part of an electromagnetic device, such as a relay or loudspeaker, that moves or vibrates.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.