The elevation is the average one—although there is no limit to the cirrus above, except the absence of sufficient moisture.
The third cirrus is about one third longer than the second cirrus.
Wisps of thin, cirrus cloud float for 200 miles around the storm center.
cirrus clouds, or others, dissolve, or cirrus have tails down.
The cirrus may last a few minutes only, or continue for hours.
Soon the ship looked, to all outward appearances, like a cirrus formation.
Sixth cirrus, in the same individual, thirty-four segments: on each of these segments there are five or six pairs of spines.
The cirrus—so called from its resemblance to a curled lock of hair.
The cirrus occurs in very great variety, and in some states of the air is constantly changing.
While, however, the cirrus remains a cirrus, it furnishes no rain.
1708, "curl-like fringe or tuft," from Latin cirrus "a lock of hair, tendril, curl, ringlet of hair; the fringe of a garment." In meteorology, cirrus clouds attested from 1803. So called from fancied resemblance of shape.
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.