cirrus: Meaning and Definition of
Pronunciation: (sir'us), [key]
— pl. cir•rus cir•ri
- 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).
- a cirriform cloud.
- a tendril.
- a filament or slender appendage serving as a foot, tentacle, barbel, etc.
- the male copulatory organ of flatworms and various other invertebrates.
- cirrus (Thesaurus)