cirrus

play
noun cir·rus \ˈsir-əs\

Definition of cirrus

plural

cirri

play \ˈsir-ˌī\
  1. 1 :  tendril

  2. 2 :  a slender usually flexible animal appendage or projection: such asa :  an arm of a barnacleb :  a filament of a crinoidc :  a fused group of cilia functioning like a limb on some protozoansd :  the male copulatory organ of various invertebrate animals

  3. 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 and Etymology of cirrus

New Latin, from Latin, curl


First Known Use: 1708


CIRRUS Defined for English Language Learners

cirrus

play
noun cir·rus \ˈsir-əs\

Definition of cirrus for English Language Learners

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


CIRRUS Defined for Kids

cirrus

play
noun cir·rus \ˈsir-əs\

Definition of cirrus for Students

plural

cirri

\ˈsir-ī\
  1. :  a thin white cloud of tiny ice crystals that forms at a very high altitude


Medical Dictionary

cirrus

play
noun cir·rus \ˈsir-əs\

Medical Definition of cirrus

plural

cirri

\ˈsi(ə)r-ˌī\play
  1. :  a slender usually flexible animal appendage: asa:  a fused group of cilia functioning like a limb on some protozoansb:  the male copulatory organ of some worms

Illustration of cirrus



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