cirrostratus: meaning, definition, pronunciation and examples
LowTechnical/Scientific
Quick answer
What does “cirrostratus” mean?
A high-altitude cloud forming a thin, uniform, whitish layer covering large areas of the sky, often producing a halo effect around the sun or moon.
Audio
Pronunciation
Definition
Meaning and Definition
A high-altitude cloud forming a thin, uniform, whitish layer covering large areas of the sky, often producing a halo effect around the sun or moon.
In meteorology, a genus of high-level cloud composed primarily of ice crystals, appearing as a transparent, fibrous or smooth veil, often indicating the approach of a warm front or precipitation within 24 hours.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage between British and American English.
Connotations
Technical/neutral in both varieties.
Frequency
Equally low frequency in both varieties, limited to weather discussions, aviation, and scientific writing.
Grammar
How to Use “cirrostratus” in a Sentence
The [sky/atmosphere] was covered with cirrostratus.Cirrostratus [indicates/predicts/foretells] approaching weather.A layer/veil/sheet of cirrostratus appeared.Vocabulary
Collocations
Examples
Examples of “cirrostratus” in a Sentence
adjective
British English
- The cirrostratus sky looked ominous.
- We observed cirrostratus conditions aloft.
American English
- The cirrostratus sky looked ominous.
- We observed cirrostratus conditions aloft.
Usage
Meaning in Context
Business
Virtually never used in business contexts.
Academic
Used in meteorology, atmospheric science, geography, and aviation studies textbooks and papers.
Everyday
Rarely used in casual conversation; might appear in weather forecasts or nature observations.
Technical
Core terminology in meteorology, aviation weather reports (METAR/TAF), and climate science.
Vocabulary
Synonyms of “cirrostratus”
Strong
Neutral
Weak
Vocabulary
Antonyms of “cirrostratus”
Watch out
Common Mistakes When Using “cirrostratus”
- Mispronouncing as 'sir-oh-STRAH-tus' (stress should be on 'stra').
- Confusing it with 'cirrocumulus' or 'altostratus'.
- Using it as a plural noun without 's' (it is already a singular mass noun).
FAQ
Frequently Asked Questions
It is a standard high-level cloud genus in meteorological classification, but non-experts may not commonly notice or name it.
No, it is composed of ice crystals and is too high and thin to produce precipitation that reaches the ground. However, it often thickens into lower clouds that do produce precipitation.
Cirrostratus forms a continuous, transparent veil causing halos, unlike the patchy cirrocumulus or the thicker, lower altostratus which obscures the sun/moon.
No, 'cirrostratus' is generally used as an uncountable noun. In technical contexts, the plural is the same, or you say 'cirrostratus clouds'.
A high-altitude cloud forming a thin, uniform, whitish layer covering large areas of the sky, often producing a halo effect around the sun or moon.
Cirrostratus is usually technical/scientific in register.
Cirrostratus: in British English it is pronounced /ˌsɪrəʊˈstrɑːtəs/, and in American English it is pronounced /ˌsɪroʊˈstreɪtəs/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “None”
Learning
Memory Aids
Mnemonic
Think: CIRRO (like a CURL of hair, high up) + STRATUS (like a STRATum or LAYER) = a high, curly, layered cloud.
Conceptual Metaphor
THE SKY IS A CANVAS (upon which cirrostratus paints a thin, uniform veil).
Practice
Quiz
What weather change does the presence of cirrostratus clouds typically indicate?