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Cirrus   Listen
noun
Cirrus  n.  (pl. cirri)  (Also written cirrhus)  
1.
(Bot.) A tendril or clasper.
2.
(Zool.)
(a)
A soft tactile appendage of the mantle of many Mollusca, and of the parapodia of Annelida. Those near the head of annelids are Tentacular cirri; those of the last segment are caudal cirri.
(b)
The jointed, leglike organs of Cirripedia. See Annelida, and Polychaeta. Note: In some of the inferior animals the cirri aid in locomotion; in others they are used in feeding; in the Annelida they are mostly organs of touch. Some cirri are branchial in function.
3.
(Zool.) The external male organ of trematodes and some other worms, and of certain Mollusca.
4.
(Meteor.) See under Cloud.





Collaborative International Dictionary of English 0.48


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"Cirrus" Quotes from Famous Books



... column stood higher than I had yet observed it here, and clouds of cirrus lay in long streaks across the sky, ranging from east to west, but these were most abundant towards the northern horizon. The day was comparatively cool and pleasant, the thermometer never having risen above 96 deg.. By 6 P.M., the barometer had fallen nearly ...
— Journal of an Expedition into the Interior of Tropical Australia • Thomas Mitchell
... more and more threatening. There were conspicuous signs of a hurricane on the way. The atmosphere was turning white and milky. Slender sheaves of cirrus clouds were followed on the horizon by layers of nimbocumulus. Other low clouds fled swiftly. The sea grew towering, inflated by long swells. Every bird had disappeared except a few petrels, friends of the storms. The barometer fell significantly, ...
— 20000 Leagues Under the Seas • Jules Verne


Words linked to "Cirrus" :   cloud, appendage, process, tendril, cirrus cloud, mare's tail, outgrowth, cirrhus


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