cirrus

A noun referring to a type of high-altitude cloud composed of fine ice crystals, appearing as thin, wispy strands; also used in biology for a slender, flexible appendage found on certain animals.

• 🇩🇪Substantiv, das eine Art hochliegender Wolken aus feinen Eiskristallen bezeichnet, die wie dünne, federartige Fasern erscheinen; in der Biologie auch ein dünner, flexibler Fortsatz bei manchen Tieren.

1. High-altitude cloud B2 formal scientific

   A type of cloud composed of ice crystals, forming thin, wispy strands at high altitudes, typically between 4 and 8 miles.

   • The sky was dotted with delicate cirrus clouds.
   • Cirrus clouds often indicate a change in the weather.
   • The pilot reported cirrus formations at 30,000 feet.

   🇩🇪Cirruswolke

2. Tendril or appendage C1 formal scientific

   A slender, flexible, and often coiled appendage found on certain animals, such as barnacles, crinoids, or insects, used for sensing or feeding.

   • The barnacle extended its cirrus to filter food from the water.
   • Crinoids use their feathery cirri to capture plankton.
   • The insect's cirrus was highly sensitive to touch.

   🇩🇪Rankenfortsatz oder Anhang

• cirri plural form
• cirruses plural form
• cirri's possessive plural form
• cirruses' possessive plural form
• cirrus's possessive singular form