sundog

sun·dog

S0886800 (sŭn′dôg′, -dŏg′)n.1. See parhelion.2. A small halo, sometimes resembling part of a rainbow, near the horizon just off the parhelic circle.

sundog

(ˈsʌnˌdɒɡ) n1. (Physical Geography) another word for parhelion2. (Physical Geography) a small rainbow or halo near the horizon

sun•dog

(ˈsʌnˌdɔg, -ˌdɒg)

n. 1. parhelion. 2. a small or incomplete rainbow. [1625–35; orig. uncertain]

Thesaurus

Noun

1.

sundog - a bright spot on the parhelic circle; caused by diffraction by ice crystals; "two or more parhelia are usually seen at once"mock sun, parhelionmaculation, patch, speckle, dapple, fleck, spot - a small contrasting part of something; "a bald spot"; "a leopard's spots"; "a patch of clouds"; "patches of thin ice"; "a fleck of red"