Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps

Noun: cirrus (cirri)  seer-us [N. Amer], si-rus [Brit]
  1. A wispy white cloud (usually of fine ice crystals) at a high altitude (4 to 8 miles)
    - cirrus cloud
  2. A thin tendril, usually coiled
    - cirrhus
  3. A slender flexible animal appendage as on barnacles, crinoids or many insects; often tactile

Sounds like: cerous, serous

Derived forms: cirri

Type of: appendage, cloud, outgrowth, process, tendril

Encyclopedia: Cirrus