a combining form representing electric or electricity in compound words: electromagnetic.
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1. Bonnaroo This festival name may bring to mind a bonanza of kangaroos, but bonnaroo is actually a Creole slang word that means “best on the street.” The inspiration for this festival name was the 1974 album Desitively Bonnaroo by jazz legend and Rock and Roll Hall of Famer Dr. John. Desitive is an obscure term meaning “conclusive.” This year, Capital Cities, Kanye West, and …
Also especially before a vowel, electr-.
Origin of electro-
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
sometimes before a vowel electr-
electric or electricallyelectrocardiograph; electrocute
Word Origin for electro-
from New Latin, from Latin ēlectrum amber, from Greek ēlektron
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
before vowels electr-, word-forming element meaning "electrical, electricity," Latinized form of Greek elektro-, comb. form of elektron "amber" (see electric).
Online Etymology Dictionary, © 2010 Douglas Harper
Electricity; electric; electrically:electrocautery.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.