World English Dictionary
halo (ˈheɪləʊ)
n , pl -loes, -los
1.  a disc or ring of light around the head of an angel, saint, etc, as in painting or sculpture
2.  the aura surrounding an idealized, famous, or admired person, thing, or event
3.  a circle of light around the sun or moon, caused by the refraction of light by particles of ice
4.  astronomy a spherical cloud of stars surrounding the Galaxy and other spiral galaxies
vb , -loes, -los, -loes, -los, -loing, -loed
5.  to surround with or form a halo
[C16: from Medieval Latin, from Latin halōs circular threshing floor, from Greek]

Collins English Dictionary - Complete & Unabridged 10th Edition
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