What is "electro-"

Electro- \E*lec"tro-\ [L. electrum amber. See Electric.] A prefix or combining form signifying pertaining to electricity, produced by electricity, producing or employing electricity, etc.; as, electro-negative; electro-dynamic; electro-magnet.

before vowels electr-, word-forming element meaning "electrical, electricity," Latinized form of Greek elektro-, comb. form of elektron "amber" (see electric). As a stand-alone, formerly often short for electrotype, electroplate.\n

pre. 1 electricity or electrical 2 (context music English) electronic and/or incorporating elements of electro(-funk)