cirrus

The most likely explanation is the presence of thick but uneven water ice clouds, similar to cirrus clouds high in Earth's atmosphere -- an unexpected complication.

From Science Daily ● Apr. 22, 2026

Some spread out and persist as high, thin cirrus clouds.

From Seattle Times ● Dec. 3, 2023

The remaining, thinner cirrus clouds would allow more long-wave radiation emanating from Earth to escape to space.

From Scientific American ● Sep. 20, 2023

Meyers’s lines grew icy and severe, distant and distinct, a contrail mingling with the cirrus clouds.

From Washington Post ● Nov. 11, 2022

There were high cumulus clouds and enough cirrus above them so that the old man knew the breeze would last all night.

From "The Old Man and The Sea" by Ernest Hemingway

In some specimens well preserved in spirits, the sack and cirri were purplish-brown or lead-colour, tinted with dirty green, or orange, or bright yellow, or brick-red.

From A Monograph on the Sub-class Cirripedia With Figures of all the Species. by Charles Darwin

Gibbula, with jaws, three pairs of epipodial cirri without pigment spots at their bases, British.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5 "Gassendi, Pierre" to "Geocentric" by Various

Colours.—Valves internally tinted, in parts, grey; peduncle, brown; corium of sack, purplish-brown, of peduncle, rich coppery brown; cirri, banded dorsally, and with the front surfaces of the segments, purplish-brown.

From A Monograph on the Sub-class Cirripedia With Figures of all the Species. by Charles Darwin

The cirri disappeared by degrees, and the cumuli towered up on the horizon in colossal masses.

From Narrative of the Circumnavigation of the Globe by the Austrian Frigate Novara, Volume I (Commodore B. Von Wullerstorf-Urbair,) Undertaken by Order of the Imperial Government in the Years 1857, 1858, & 1859, Under the Immediate Auspices of His I. and R. Highness the Archduke Ferdinand Maximilian, Commander-In-Chief of the Austrian Navy. by Karl Ritter von Scherzer

Spines on the upper segments of the posterior cirri, arranged in three or four approximate longitudinal rows, making small brushes.

From A Monograph on the Sub-class Cirripedia With Figures of all the Species. by Charles Darwin