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| ro·tor [ rṓtər ] (plural ro·tors) |
noun |
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| Definition: |
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1. rotating airfoils on helicopter: an assembly consisting of several flat blades attached to a hub, which rotates either horizontally to give lift and thrust to a helicopter, or vertically to help control it
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2. rotor blade: a blade or airfoil of a rotor
(
informal
)
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3. rotating part of machine: a rotating part of an electrical apparatus, e.g. the armature of a generator, or of a mechanical device
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4. meteorology wave of air: a wave of air in which air rotates around a horizontal axis
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| [Late 19th century. Contraction of rotator] |
