hole punch cloud
n.— «“Hole punch clouds,” also known as “fallstreak holes,” occur when patches of high cloud freeze and fall as ice crystals, leaving a dramatic gap behind.» —“Holes over Louisiana” Cloud Appreciation Society June 2, 2007. (source: Double-Tongued Dictionary)
Further reading
Diamond dust, tapioca snow, and sugar icebergs — a 1955 glossary of arctic and subarctic terms describes the environment in ways that sound poetic. And a mom says her son is dating someone who’s non-binary. She supports their relationship, but...
The word cloud comes from Old English clūd, meaning “rock” or “hill,” making it a relative of the word clod. The sense of a “hill” or “mass of rocks” was later applied to those vaporous hills in the sky. This is part of a complete episode.
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