Webster 1913 Edition
Of or pertaining to the zodiac; situated within the zodiac;
a luminous tract of the sky, of an elongated, triangular figure, lying near the ecliptic, its base being on the horizon, and its apex at varying altitudes. It is to be seen only in the evening, after twilight, and in the morning before dawn. It is supposed to be due to sunlight reflected from multitudes of meteoroids revolving about the sun nearly in the plane of the ecliptic.
Webster 1828 Edition
Zodiacal light, a luminous track or space in the heavens, resembling that of the milky way, sometimes appearing after sunset and before sunrising.