Etymology
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electrical (adj.)

1630s, "giving off electricity when rubbed," from electric + -al (1). Meaning "relating to electricity, run by electricity" is from 1746. Related: Electrically.

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Definitions of electrical

electrical (adj.)
relating to or concerned with electricity;
an electrical engineer
electrical and mechanical engineering industries
electrical (adj.)
using or providing or producing or transmitting or operated by electricity;
electrical appliances
an electrical storm
Synonyms: electric
From wordnet.princeton.edu