WordReference Random House Unabridged Dictionary of American English © 2025
electr-, 
  1. Electricityvar. of electro- before a vowel:electrode.

WordReference Random House Unabridged Dictionary of American English © 2025
e•lec•tro  (i lek′trō),USA pronunciation n., pl. -tros. 
  1. Printingelectrotype.
  • by shortening

electro-, 
  1. Electricitya combining form representing electric or electricity in compound words:electromagnetic.
Also,[esp. before a vowel,] electr-. 
  • electr(ic) + -o-

'electr-' also found in these entries (note: many are not synonyms or translations):
astrionics - avionics - bionics - electret - electric - electrify - electro - electro- - electrode - electron - electrophilic - hydronic - triode

Forum discussions with the word(s) "electr-" in the title:


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