helio

[ hee-lee-oh ]
/ ˈhi liˌoʊ /

noun, plural he·li·os.Informal.

a heliogram.
a heliograph.

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Origin of helio

by shortening

Definition for helio (2 of 2)

helio-

a combining form meaning “sun,” used in the formation of compound words: heliolatry.
Also especially before a vowel, heli-.

Origin of helio-

<Greek, combining form of hḗliossun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for helio

helio-

before a vowel heli-

combining form

indicating the sunheliocentric; heliolithic

Word Origin for helio-

from Greek, from hēlios sun
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