angle of repose: meaning, definition, pronunciation and examples
LowTechnical / Literary
Quick answer
What does “angle of repose” mean?
The steepest angle at which a loose material (like sand, soil, or gravel) can be piled without sliding.
Audio
Pronunciation
Definition
Meaning and Definition
The steepest angle at which a loose material (like sand, soil, or gravel) can be piled without sliding.
A metaphorical concept representing the point of maximum stability before collapse, often applied to psychological states, relationships, or systems.
Dialectal Variation
British vs American Usage
Differences
No significant difference in meaning. Spelling remains the same.
Connotations
In both varieties, the term carries technical precision. The metaphorical extension is equally recognised in literary/academic contexts.
Frequency
Equally low-frequency in both dialects, confined to specific technical fields and literary analysis.
Grammar
How to Use “angle of repose” in a Sentence
The [material] has an angle of repose of [number] degrees.They measured the angle of repose for the [material].Vocabulary
Collocations
Examples
Examples of “angle of repose” in a Sentence
adjective
British English
- The angle-of-repose calculation is crucial.
- They conducted an angle-of-repose test.
American English
- The angle-of-repose calculation is critical.
- They performed an angle-of-repose analysis.
Usage
Meaning in Context
Business
Rare. Potentially used metaphorically in risk management: 'The project is nearing its angle of repose.'
Academic
Common in geology, civil engineering, and physics papers. Also in literary criticism discussing Stegner.
Everyday
Virtually never used in casual conversation.
Technical
Standard term in geotechnical engineering, soil mechanics, and bulk material handling.
Vocabulary
Synonyms of “angle of repose”
Strong
Neutral
Weak
Vocabulary
Antonyms of “angle of repose”
Watch out
Common Mistakes When Using “angle of repose”
- Misspelling as 'angle of repost' or 'angle of repose' (confusion with 'repose' as a verb).
- Using it as a verb (e.g., 'The soil angles of repose').
FAQ
Frequently Asked Questions
No, it is a low-frequency term used primarily in technical contexts (geology, engineering) and literary analysis.
Yes, largely due to the influence of Wallace Stegner's Pulitzer-winning novel of the same name. It can metaphorically describe the point of maximum stability in a system or relationship before collapse.
Slowly pour dry sand or sugar onto a flat surface from a single point. The sides of the resulting cone will form the material's angle of repose.
Yes, it depends on the material's properties (grain size, shape, moisture, cohesion) and external factors like vibration.
Angle of repose is usually technical / literary in register.
Angle of repose: in British English it is pronounced /ˈæŋɡl əv rɪˈpəʊz/, and in American English it is pronounced /ˈæŋɡl əv rɪˈpoʊz/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “At his angle of repose (metaphorical: at his point of stability/exhaustion).”
Learning
Memory Aids
Mnemonic
Imagine a pile of sand REPOSING (resting) at its steepest possible ANGLE before it slides.
Conceptual Metaphor
STABILITY IS A PRECARIOUS BALANCE / SYSTEMS ARE PILES OF MATERIAL
Practice
Quiz
In which field is the term 'angle of repose' most precisely and originally defined?