heli-

heli-

1
variant of helio- before a vowel: helianthus.
Dictionary.com Unabridged

heli-

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

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Heli- is always a great word to know.
So is doohickey. Does it mean:
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
a gadget; dingus; thingumbob.
LEARN MORE UNUSUAL WORDS WITH WORD DYNAMO...
Collins
World English Dictionary
heli-
 
—combining form
helicopter: heliport
 
[C20: shortened from helicopter]

helio- or (before a vowel) heli-
 
—combining form
indicating the sun: heliocentric; heliolithic
 
[from Greek, from hēlios sun]
 
heli- or (before a vowel) heli-
 
—combining form
 
[from Greek, from hēlios sun]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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