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helio

1 American  
[hee-lee-oh] / ˈhi liˌoʊ /

noun

Informal.

plural

helios
  1. a heliogram.

  2. a heliograph.


helio- 2 American  
  1. a combining form meaning “sun,” used in the formation of compound words.

    heliolatry.


helio- British  

combining form

  1. indicating the sun

    heliocentric

    heliolithic

"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

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

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The helio station in the Great City was now reinstated.

From Tarrano the Conqueror by Cummings, Ray

A helio car swung down in front of the school.

From There Will Be School Tomorrow by Thiessen, V. E.

A signal station on the top maintained helio communication within a radius of 30 or 40 miles, and exchanged occasional messages at 70 miles or more.

From Two Years on Trek Being Some Account of the Royal Sussex Regiment in South Africa by Moulin, Louis Eug?ne du

He gave orders quickly to the chauffeur, and then the helio was hovering inches above the tree tops, and he tossed a plastiweave ladder over the side.

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

While coming along this afternoon we saw something like helio signals flashing in the air.

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