cirrus

cir·rus

noun \ˈsir-əs\

plural cir·ri\ˈsir-ˌī\

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

cerous, peeress, scirrhous, seeress, serous