helio
noun
a heliogram.
helio
1 American
[hee-lee-oh]
/ ˈhi liˌoʊ /
noun
Informal.
helios
plural
-
a heliogram.
-
a heliograph.
helio-
2
American
helio-
British
combining form
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-.
Other Word Forms
Noun Inflected Forms
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.
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.
Thought images as well as words, Kriijorl had explained during their flight so long ago in the helio.
From The Women-Stealers of Thrayx by Holden, Fox B.
The bus finally vanished less than a half-mile ahead of Mason's helio, and there was a dark vertical shadow jutting just above the tree tops.
From The Women-Stealers of Thrayx by Holden, Fox B.
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
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)
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
