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helio

[ hee-lee-oh ]
/ ˈhi liˌoʊ /
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noun, plural he·li·os.Informal.
a heliogram.
a heliograph.
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Origin of helio

By shortening

Other definitions 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. 2022

WORDS THAT USE HELIO-

What does helio- mean?

Helio- is a combining form used like a prefix meaning “sun.” It is frequently used in a variety of scientific and technical terms.

Helio- comes from Greek hḗlios, meaning “sun.” The Latin cognate, sōl, is the source of several words related to the sun, such as solar and solstice.

What are variants of helio-?

When combined with words or word elements that begin with a vowel, helio- becomes heli-, as in heliencephalitis. Want to know more? Read our Words That Use article for heli-.

Examples of helio-

One example of a term that features the form helio- is heliolatry, meaning “worship of the sun.”

We know helio- means “sun,” and the -latry portion of the word refers to “worship,” from Greek -latria. Heliolatry literally translates to “sun worship.”

What are some words that use the combining form helio-?

What are some other forms that helio- may be commonly confused with?

Break it down!

The combining form -phyte means “plant with a specific habitat.” With this in mind, what kind of plant does the botanical term heliophyte refer to?

How to use helio in a sentence

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
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