|a very faint cone of light in the sky, visible in the east just before sunrise and in the west just after sunset. It is probably due to the reflection of sunlight from cosmic dust in the plane of the ecliptic|
|zodiacal light (zō-dī'ə-kəl) Pronunciation Key
A faint hazy cone of light, often visible in the west just after sunset or in the east just before sunrise, and elongated in the direction of the ecliptic on each side of the Sun. It is apparently caused by the reflection of sunlight from meteoric particles in the plane of the ecliptic.