cirrus

/ˈsɪɹəs/ 名词 C2

中文：卷云

Synonym of tendril (“a thin, spirally coiling stem that attaches a plant to its support”).
A thin tendril-like appendage, such as a barbel (“whisker-like sensory organ around the mouth”) of some fish, a cilium of some species of protists, or a foot of some crustaceans of the infraclass Cirripedia.
A principal high-level type of cloud, typically composed of thin, delicate, white filaments or wisps, or narrow bands.

复数 cirri

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