watermelon snow

English

watermelon snow

Noun

watermelon snow (uncountable)

Snow stained with patches of red and green, naturally caused by Chlamydomonas nivalis.
Chlamydomonas nivalis, a species of green algae containing the red pigment astaxanthin, secondary to green chlorophyll, sometimes encountered as reddish streaks in snow.

Synonyms

(snow stained with red and green): pink snow, red snow, blood snow
(Chlamydomonas nivalis): snow algae, pink snow, red snow, blood snow

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