The act of winding or coiling completely around something in circular movements.
From Latin circumundulatus, combining circum- (around) and undulatus (wavy, from undula meaning wave). The term evolved to describe rotational or spiral motion that encircles an object.
This word is so rare that even most Latin scholars would struggle with it—it perfectly captures the kind of flowing, spiraling motion you see in galaxies, hurricanes, and the way water swirls down a drain.
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