cirrus


cir·rus

noun \ˈsir-əs\

: a thin type of cloud that forms high in the sky

plural cir·ri \ˈsir-ˌī\

Full Definition of CIRRUS

1
:  tendril
2
:  a slender usually flexible animal appendage or projection: as
a :  an arm of a barnacle
b :  a filament of a crinoid
c :  a fused group of cilia functioning like a limb on some protozoans
d :  the male copulatory organ of various invertebrate animals
3
:  a high wispy white cloud usually of minute ice crystals formed at altitudes between about 20,000 and 40,000 feet (6,000 and 12,000 meters) — see cloud illustration

Origin of CIRRUS

New Latin, from Latin, curl
First Known Use: 1708

Rhymes with CIRRUS

cir·rus

noun \ˈsir-əs\   (Medical Dictionary)
plural cir·ri \ˈsi(ə)r-ˌī\

Medical Definition of CIRRUS

: a slender usually flexible animal appendage: as a : a fused group of cilia functioning like a limb on some protozoans b : the male copulatory organ of some worms

Illustration of CIRRUS

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