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⇱ heli- - WordReference.com Dictionary of English


WordReference Random House Unabridged Dictionary of American English © 2026
heli-,1 
  1. var. of helio- before a vowel:helianthus.

heli-,2 
  1. a combining form representing helicopter in compound words:helidrop;helilift;helitaxi.
  • compare copter by analysis of helicopter as heli- (an assumed combining form with -i-) + -copter

Collins Concise English Dictionary © HarperCollins Publishers::
heli- combining form
  1. helicopter: heliport
Etymology: 20th Century: shortened from helicopter
WordReference Random House Unabridged Dictionary of American English © 2026
he•li•o  (hē′lē ō′),USA pronunciation n., pl. -li•os. [Informal.]
  1. Optics, Informal Termsa heliogram.
  2. Optics, Informal Termsa heliograph.
  • by shortening

helio-, 
  1. a combining form meaning "sun,'' used in the formation of compound words:heliolatry.
Also,[esp. before a vowel,] heli-. 
  • Greek, combining form of hé̄lios sun

'heli-' also found in these entries (note: many are not synonyms or translations):

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


Look up "heli-" at Merriam-Webster
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