armature

US /ˈɑːr.mə.tʃɚ/
UK /ˈɑːr.mə.tʃɚ/
"armature" picture
1.

the rotating part of an electrical machine, such as a motor or generator, that carries the current and is acted upon by the magnetic field

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The technician replaced the worn armature in the old motor.
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A strong magnetic field is essential for the armature to function efficiently.
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rotorcoilwinding
2.

a framework around which a sculpture is built

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The sculptor first built a wire armature to support the clay.
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Without a strong armature, the large ceramic piece would collapse.
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frameworkskeletonsupportframe