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Related to cirrus: cirrus cloud
n. pl. cir·ri (sîr′ī′)
1. A high-altitude cloud composed of narrow bands or patches of thin, generally white, fleecy parts.
a. A tendril.
b. A slender flexible appendage, such as a tuft of fused cilia of certain protozoans or one of the feathery appendages of a barnacle.
[Latin, curl of hair.]
n, pl -ri (-raɪ)
1. (Physical Geography) meteorol a thin wispy fibrous cloud at high altitudes, composed of ice particles
2. (Botany) a plant tendril or similar part
3. (Zoology) zoology
a. a slender tentacle or filament in barnacles and other marine invertebrates
b. a hairlike structure in other animals, such as a filament on the appendage of an insect or a barbel of a fish
[C18: from Latin: curl, tuft, fringe]
n., pl. cir•ri (ˈsɪr aɪ) .
1. a high-altitude cloud composed of ice crystals and characterized by thin white filaments or narrow bands.
2. a tendril.
a. a filament or slender appendage serving as a foot, tentacle, barbel, etc.
b. the male copulatory organ of flatworms and various invertebrates.
[1700–10; < Latin: a curl, tuft, plant filament]
A cloud formation made up of feathery white patches, bands, or streamers of ice crystals. Cirrus clouds form at upper levels of the atmosphere.
Light, feather-shaped white clouds that usually form at 4–6 mi (7.6–10km).
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|Noun||1.||cirrus - usually coiled |
tendril - slender stem-like structure by which some twining plants attach themselves to an object for support
|2.||cirrus - a wispy white cloud (usually of fine ice crystals) at a high altitude (4 to 8 miles)|
cloud - a visible mass of water or ice particles suspended at a considerable altitude
mare's tail - a long narrow flowing cirrus cloud
|3.||cirrus - a slender flexible animal appendage as on barnacles or crinoids or many insects; often tactile|