first of nine traditional astrological signs (Mercury, north)
Used in the context of 九星 (kyūsei) divination. Corresponds to the planet Mercury and the northern direction.
See also: 九星
In nine-star astrology, 一白 represents Mercury and the north.
white patch on one foot of a horse; horse with such a patch
Specialized equestrian term. Can refer to the marking itself or to a horse bearing it.
That horse has a white patch on its right foreleg.
surface that is white all over; pure white
Describes a landscape or surface entirely covered in white, or the quality of being pure white. Rare and somewhat literary.
Snow fell and piled up, turning the whole area into a pure white expanse.