cirrus

名词 n.
中文释义
英 /ˈsɪɹəs/|/ˈsɪɹaɪ/    美 /ˈsɪɹəs/|/ˈsɪɹaɪ/

英文释义

名词 n.
  1. Synonym of tendril (“a thin, spirally coiling stem that attaches a plant to its support”).
    — Cirri are taken for thoſe fine Strings, or Hairs, by vvhich ſome Plants faſten themſelves, in order to their Support in creeping along; as Ivy, &c.
  2. 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.
    — Each foot is divided into two parts, one dorsal, the other ventral, and each part has a bundle of subulate bristles and a cirrus.
  3. A principal high-level type of cloud, typically composed of thin, delicate, white filaments or wisps, or narrow bands. attributive,often
    — [page 99] Cirrus. […] Parallel, flexuous, or diverging fibres, extensible in any or in all directions. […] [page 100] In fair weather, with light variable breezes, the sky is seldom quite clear of small groups of the oblique cirrus, which frequently come on from the leeward, and the direction of their increase is to windward.

词形变化

cirri plural

词汇关系

衍生词
cirral cirro- cirrus-bag
相关词
cirrate cirrated cirrhopod cirrhose cirriferous cirriform cirrigerous cirrigrade cirriped cirripede cirrocumulus cirropodous cirrostratus cirrous

词源

Learned borrowing from Latin cirrus (“curl; fringe of clothes; mane (especially forelock) of a horse; etc”); further etymology unknown.
Sense 2 (“type of cloud”) was coined by the British chemist and amateur meteorologist Luke Howard (1772–1864): see the 1803 quotation.
The plural form cirri is also a learned borrowing from Latin cirrī, the nominative or vocative plural of cirrus.
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