What does cirriform mean?
Cirriform is a precise adjective for something shaped like a cirrus cloud: fine, elongated, wispy, and often streaked. Meteorologists use it when describing high-altitude cloud formations or cloud cover with a cirrus-like appearance, while writers in the biological and physical sciences may use it for slender structures that taper into curling, hair-like forms. The word combines the image of a cloud streak with the more general idea of a delicate filament or tendril. In ordinary prose, “wispy” often communicates the same visual impression more naturally, but “cirriform” is valuable when precision or a specifically cirrus-like quality matters. It is not commonly used for a whole cloud, since a cirrus is the noun naming the cloud and “cirriform” describes its form or appearance.
adjectiveHaving the appearance or form of a cirrus cloud, especially of its fine, wispy, filament-like streaks. More generally, it describes something slender, tapering, and tendril-like.
- Resembling a cirrus cloud, especially in its fine, wispy, streaked appearance.
- Having a slender, tapering, curling form resembling a tendril or filament.
"A delicate veil of cirriform cloud stretched across the blue sky."
"Aircraft approached the storm through a veil of cirriform cloud."
"The illustrator used cirriform lines to suggest frost spreading across the window."
At high altitude, the sky becomes cirriform: feathered, wispy streaks that seem combed across the heavens.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does cirriform come from?
Cirriform was formed in English from Latin cirrus, meaning a curl, tuft, or tendril and also the source of the English name for a high, wispy cloud, together with the combining form -form, meaning “shape” or “form.” The two elements together express the idea of having a curl-, filament-, or cloud-like form. Related English words retain the same Latin element in forms such as cirrate, cirrose, and cirriferous.
How cirriform is actually used
This is a specialized and relatively uncommon adjective, used chiefly in meteorology and in scientific descriptions of filament-like or tendril-like forms. In general writing, “wispy” is usually more accessible.
Easily confused with cirriform
Cirrus is the noun naming a high, wispy cloud, while cirriform is the adjective describing something that resembles such a cloud or has a fine, tendril-like form.