helio

¹ American  

[hee-lee-oh] / ˈhi liˌoʊ /

noun

Informal.

plural

helios

1. a heliogram.

2. a heliograph.

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helio- ² American  

1. a combining form meaning “sun,” used in the formation of compound words.

   heliolatry.

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helio- British  

combining form

1. indicating the sun

   heliocentric

   heliolithic

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Usage

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-.

Etymology

Origin of helio¹

By shortening

Origin of helio-²

< Greek, combining form of hḗlios sun

Example Sentences

A few minutes under the helio emanations and he would be fit for light duty.

From Astounding Stories of Super-Science September 1930 by Bates, Harry

The helio was slanting downward, and was now less than five miles distant from the fast vanishing bus.

From The Women-Stealers of Thrayx by Holden, Fox B.

"I want the helio, please," said Avelyn doggedly.

From For the School Colours by Brazil, Angela

He had scarcely uttered the last word when a helio began to twinkle from the hill above Foreland.

From The World Peril of 1910 by Griffith, George Chetwynd

Not a Martian set, but a fully powerful Botz ultra-violet helio sender with its attendant receiving mirrors.

From Astounding Stories of Super-Science, May, 1930 by Bates, Harry