| Word | Definitions | Synonyms |
|---|---|---|
| parheliacal | (adjective) relating to or resembling a parhelion | Synonyms: parhelic |
| parhelic | (adjective) relating to or resembling a parhelion | Synonyms: parheliacal |
| parhelion | (noun) a bright spot on the parhelic circle; caused by diffraction by ice crystals | Synonyms: mock sun, sundog |