also: べにゆき
noun
Snow that appears red or pink due to microscopic algae, yellow sand, or other impurities. Often used in scientific or natural observation contexts. Also called 赤雪.
See also: 赤雪
山で紅雪が見られることがある。
Red snow can sometimes be seen in the mountains.
紅雪の原因は藻類だと言われている。
The cause of red snow is said to be algae.
Synonym; 赤雪 is a more common term for red snow, while 紅雪 is a less frequent variant.
Compound of 紅 (red/crimson) and 雪 (snow). The exact origin is uncertain, but it likely arose as a descriptive term for naturally occurring reddish snow.