- a combining form representing electric or electricity in compound words: electromagnetic.
combining form
- electric or electricallyelectrocardiograph; electrocute
- electrolyticelectroanalysis
before vowels electr-, word-forming element meaning “electrical, electricity,” Latinized form of Greek elektro-, comb. form of elektron “amber” (see electric).
pref.
- Electricity; electric; electrically:electrocautery.
- Electron:electronegative.