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

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

This Hal did, and it was all news to the lieutenant, for neither he nor any member of his hunting party had seen the helio signals.

From Uncle Sam's Boys as Sergeants or, Handling Their First Real Commands by Hancock, H. Irving (Harrie Irving)

Upon the high tower of Beccles Church is established a signal station, communication being made constantly with Lowestoft by helio by day, and acetylene lamps by night.

From The Invasion by Le Queux, William

Prob’ly his old lookin’-glass telegraft is busted,” he added, with slighting reference to the Jerusalem helio.

From King Spruce, A Novel by Day, Holman

At sixty thousand feet the helio vanes were useless, only the power of the auxiliary rocket-tubes maintained his altitude.

From When the Sleepers Woke by Zagat, Arthur Leo