halo

[ hey-loh ]
/ ˈheɪ loʊ /

noun, plural ha·los, ha·loes.

verb (used with object), ha·loed, ha·lo·ing.

to surround with a halo.

verb (used without object), ha·loed, ha·lo·ing.

to form a halo.

Origin of halo

1555–65; < Latin, accusative of halōs circle round sun or moon < Greek hálōs such a circle, disk, orig. threshing floor
Related formsun·ha·loed, adjective

Definition for halo (2 of 2)

halo-


a combining form meaning “salt,” used in the formation of compound words (halophyte); sometimes specialized as a combining form of halogen (halothane).
Also especially before a vowel, hal-.

Origin of halo-

< Greek, combining form of háls salt
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for halo

British Dictionary definitions for halo (1 of 2)

halo

/ (ˈheɪləʊ) /

noun plural -loes or -los

a disc or ring of light around the head of an angel, saint, etc, as in painting or sculpture
the aura surrounding an idealized, famous, or admired person, thing, or event
a circle of light around the sun or moon, caused by the refraction of light by particles of ice
astronomy a spherical cloud of stars surrounding the Galaxy and other spiral galaxies

verb -loes, -los, -loing or -loed

to surround with or form a halo
Derived Formshalo-like, adjective

Word Origin for halo

C16: from Medieval Latin, from Latin halōs circular threshing floor, from Greek

British Dictionary definitions for halo (2 of 2)

halo-

hali- or before a vowel hal-


combining form

indicating salt or the seahalophyte
relating to or containing a halogenhalothane

Word Origin for halo-

from Greek hals, hal- sea, salt
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

Medicine definitions for halo (1 of 2)

halo

[ hālō ]

n. pl. ha•los

A reddish yellow ring surrounding the optic disk, caused by an expansion of the scleral ring that makes the deeper structures visible.
Glaucomatous halo.
A ring of light surrounding a luminous body.

Medicine definitions for halo (2 of 2)

halo-


pref.

Salt:halophilic.
Halogen:halide.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for halo

halo

[ hālō ]

A hazy ring of colored light in the sky around the Sun, Moon, or a similar bright object. A halo is caused by the reflection and refraction of light through atmospheric ice crystals.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.