cirrus

[ sir-uhs ]

/ ˈsɪr əs /

SEE SYNONYMS FOR cirrus ON THESAURUS.COM

noun, plural cir·rus for 1, cir·ri [sir-ahy] /ˈsɪr aɪ/ for 2, 3.

Meteorology.

a cloud of a class characterized by thin white filaments or narrow bands and a composition of ice crystals: of high altitude, about 20,000–40,000 feet (6000–12,000 meters).
a cirriform cloud.

Botany. a tendril.

Zoology.

a filament or slender appendage serving as a foot, tentacle, barbel, etc.
the male copulatory organ of flatworms and various other invertebrates.

Origin of cirrus

1700–10; <Latin: a curl, tuft, plant filament like a tuft of hair

Words nearby cirrus

cirripede, cirro-, cirrocumulus, cirrose, cirrostratus, cirrus, cirrus clouds, cirsectomy, cirsoid, cirsoid aneurysm, cis

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for cirrus

Mandibles with four teeth; caudal appendages twice as long as the pedicels of the sixth cirrus.
A Monograph on the Sub-class Cirripedia (Volume 1 of 2)|Charles Darwin
The day was warm for the season—so sultry that the cirrus clouds swimming in the blue ether, looked soft to April tearfulness.
Jessamine|Marion Harland
The cirrus may last a few minutes only, or continue for hours.
The Rain Cloud|Anonymous
These questions occur, at first sight, respecting every group of cirrus cloud.
Modern Painters, Volume V (of 5)|John Ruskin

In the third cirrus, the posterior ramus is sometimes much elongated, but sometimes both rami are short and blunt.
A Monograph on the Sub-class Cirripedia (Volume 2 of 2)|Charles Darwin

British Dictionary definitions for cirrus

cirrus

/ (ˈsɪrəs) /

noun plural -ri (-raɪ)

meteorol a thin wispy fibrous cloud at high altitudes, composed of ice particles

a plant tendril or similar part

zoology

a slender tentacle or filament in barnacles and other marine invertebrates
a hairlike structure in other animals, such as a filament on the appendage of an insect or a barbel of a fish

Word Origin for cirrus

C18: from Latin: curl, tuft, fringe

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for cirrus

cirrus

[ sîr′əs ]

Plural cirri (sîr′ī′)

A high-altitude cloud composed of feathery white patches or bands of ice crystals. Cirrus clouds generally form between 6,100 and 12,200 m (20,000 and 40,000 ft). See illustration at cloud.

单词	cirrus
释义	cirrus [ sir-uhs ] / ˈsɪr əs / SEE SYNONYMS FOR cirrus ON THESAURUS.COM noun, plural cir·rus for 1, cir·ri [sir-ahy] /ˈsɪr aɪ/ for 2, 3. Meteorology. a cloud of a class characterized by thin white filaments or narrow bands and a composition of ice crystals: of high altitude, about 20,000–40,000 feet (6000–12,000 meters). a cirriform cloud. Botany. a tendril. Zoology. a filament or slender appendage serving as a foot, tentacle, barbel, etc. the male copulatory organ of flatworms and various other invertebrates. Origin of cirrus 1700–10; <Latin: a curl, tuft, plant filament like a tuft of hair Words nearby cirrus cirripede, cirro-, cirrocumulus, cirrose, cirrostratus, cirrus, cirrus clouds, cirsectomy, cirsoid, cirsoid aneurysm, cis Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for cirrus Mandibles with four teeth; caudal appendages twice as long as the pedicels of the sixth cirrus. A Monograph on the Sub-class Cirripedia (Volume 1 of 2)\|Charles Darwin The day was warm for the season—so sultry that the cirrus clouds swimming in the blue ether, looked soft to April tearfulness. Jessamine\|Marion Harland The cirrus may last a few minutes only, or continue for hours. The Rain Cloud\|Anonymous These questions occur, at first sight, respecting every group of cirrus cloud. Modern Painters, Volume V (of 5)\|John Ruskin In the third cirrus, the posterior ramus is sometimes much elongated, but sometimes both rami are short and blunt. A Monograph on the Sub-class Cirripedia (Volume 2 of 2)\|Charles Darwin British Dictionary definitions for cirrus cirrus / (ˈsɪrəs) / noun plural -ri (-raɪ) meteorol a thin wispy fibrous cloud at high altitudes, composed of ice particles a plant tendril or similar part zoology a slender tentacle or filament in barnacles and other marine invertebrates a hairlike structure in other animals, such as a filament on the appendage of an insect or a barbel of a fish Word Origin for cirrus C18: from Latin: curl, tuft, fringe Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Words related to cirrus clasp, coil, curl, ringlet Scientific definitions for cirrus cirrus [ sîr′əs ] Plural cirri (sîr′ī′) A high-altitude cloud composed of feathery white patches or bands of ice crystals. Cirrus clouds generally form between 6,100 and 12,200 m (20,000 and 40,000 ft). See illustration at cloud. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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cirrus

noun, plural cir·rus for 1, cir·ri [sir-ahy] /ˈsɪr aɪ/ for 2, 3.

Origin of cirrus

Words nearby cirrus

Example sentences from the Web for cirrus

British Dictionary definitions for cirrus

noun plural -ri (-raɪ)

Word Origin for cirrus

Words related to cirrus

Scientific definitions for cirrus

Plural cirri (sîr′ī′)