Dictionary

1halo

noun ha·lo \ˈhā-(ˌ)lō\

: a circle of light that is shown in a religious painting, drawing, etc., around the head of a holy figure (such as an angel, saint, or god)

: a bright circle seen around the sun or the moon

plural halos or haloes

Full Definition of HALO

1
:  a circle of light appearing to surround the sun or moon and resulting from refraction or reflection of light by ice particles in the atmosphere
2
:  something resembling a halo: as
a :  nimbus
b :  a region of space surrounding a galaxy that is sparsely populated with luminous objects (as globular clusters) but is believed to contain a great deal of dark matter
c :  a differentiated zone surrounding a central zone or object
d :  an orthopedic device used to immobilize the head and neck (as to treat fracture of neck vertebrae) that consists of a metal band placed around the head and fastened to the skull usually with metal pins and that is attached by extensions to an inflexible vest —called also halo brace
3
:  the aura of glory, veneration, or sentiment surrounding an idealized person or thing

Examples of HALO

  1. <the halo of unimpeachable honesty in which the politician had long basked>
  2. <a naturalistic depiction of Saint Peter that shows him as a humble fisherman and without the traditional halo>

Origin of HALO

Latin halos, from Greek halōs threshing floor, disk, halo
First Known Use: 1603

Other Astronomy Terms

gibbous, nadir, nebulous, penumbra, retrograde, sidereal, syzygy, wane, wax, zenith

2halo

verb

Definition of HALO

transitive verb
:  to form into or surround with a halo <rainbows haloed the waterfalls — Michael Crawford>

First Known Use of HALO

1801
HALOES Defined for Kids

halo

noun ha·lo \ˈhā-lō\
plural halos or haloes

Definition of HALO for Kids

1
:  a bright circle around the head of a person (as in a painting) that signifies holiness
2
:  a circle of light around the sun or moon caused by tiny ice crystals in the air
Medical Dictionary

halo

noun ha·lo \ˈhā-(ˌ)lō\
plural halos or haloes

Medical Definition of HALO

1
:  a circle of light appearing to surround a luminous body; especially :  one seen as the result of the presence of glaucoma
2
:  a differentiated zone surrounding a central object <the halo around a boil>
3
:  the aura of glory, veneration, or sentiment surrounding an idealized person or thing
4
:  an orthopedic device used to immobilize the head and neck (as to treat fracture of neck vertebrae) that consists of a metal band placed around the head and fastened to the skull usually with metal pins and that is attached by extensions to an inflexible vest—called also halo brace

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