electro

noun, plural e·lec·tros.

1. electrotype.

1. a combining form representing electric or electricity in compound words: electromagnetic.

noun plural -tros

1. short for electroplate, electrotype

combining form

1. electric or electricallyelectrocardiograph; electrocute
2. electrolyticelectroanalysis

before vowels electr-, word-forming element meaning “electrical, electricity,” Latinized form of Greek elektro-, comb. form of elektron “amber” (see electric).

pref.

1. Electricity; electric; electrically:electrocautery.
2. Electron:electronegative.