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Meaning of cirrus

cir•rus

Pronunciation: (sir'us), [key]
— pl. cir•rus cir•ri
    1. a cloud of a class characterized by thin white filaments or narrow bands and a composition of ice crystals: of high altitude, ab. 20,000–40,000 ft. (6000–12,000 m).
    2. a cirriform cloud.
  1. a tendril.
    1. a filament or slender appendage serving as a foot, tentacle, barbel, etc.
    2. the male copulatory organ of flatworms and various other invertebrates.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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