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

They were nearing Denver, and air traffic at their level had picked up, and the helio was proceeding more slowly so that Kriijorl's demonstration caused him to miss little of the tour.

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

Sanders, working round the Isisi River, with ten Houssas and an attack of malaria, got a helio message: "Go Akasava and settle that infernal woman palaver.—Administration."

From Sanders of the River by Wallace, Edgar

A winking electric helio on one of them spits out a message to the leader of the destroyers, and she flashes answer and acknowledgment as readily as though the seaplane were a sister craft.

From Merchantmen-at-arms : the British merchants' service in the war by Bone, David W. (David William)

The helio station in the Great City was now reinstated.

From Tarrano the Conqueror by Cummings, Ray

The helio mirrors were swaying again with another message from Grantline.

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