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search:
boost: 2.0
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# Enum: CompressibilityUnit
_measures how the system volume responds to pressure changes._
URI: [https://CCPBioSim.ac.uk/biosim-schema/CompressibilityUnit](https://CCPBioSim.ac.uk/biosim-schema/CompressibilityUnit)
## Permissible Values
| Value | Meaning | Description |
| --- | --- | --- |
| 1/bar | qudt:PER-BAR | reciprocal bar |
| 1/Pa | qudt:PER-PA | reciprocal Pascal |
## Identifier and Mapping Information
### Schema Source
* from schema: https://CCPBioSim.ac.uk/biosim-schema/
## LinkML Source
```yaml
name: CompressibilityUnit
description: measures how the system volume responds to pressure changes.
from_schema: https://CCPBioSim.ac.uk/biosim-schema/
rank: 1000
permissible_values:
1/bar:
text: 1/bar
description: reciprocal bar
meaning: qudt:PER-BAR
annotations:
ucum_code:
tag: ucum_code
value: bar-1
aliases:
- 1/bar
- Bar^-1
- Bar-1
1/Pa:
text: 1/Pa
description: reciprocal Pascal
meaning: qudt:PER-PA
annotations:
ucum_code:
tag: ucum_code
value: Pa-1
aliases:
- 1/Pa
- Pascal^-1
- Pascal-1
```