# Ontology of Physics for Biology (OPB)

> The OPB is a reference ontology of classical physics and thermodynamics as applied to the...

- Page: https://library.schematica.io/model/1fb4413d570f401a986b68d3c0a94d0d
- Model type: Ontology
- License: CC BY 4.0
- Access type: Free
- Access method: Download
- Model size: Small
- Formats: OWL
- External link: https://bioportal.bioontology.org/ontologies/OPB
- Contact: Daniel L. Cook (dcook@u.washington.edu)
- Listed in library: 2025-06-12
- Last updated: 2022-12-11

## Description

## Ontology Info

| Field | Value |
|-------|-------|
| Acronyme | OPB |
| Description | The OPB is a reference ontology of classical physics and thermodynamics as applied to the dynamics of biological systems. It is designed to encompass the multiple structural scales (atoms to organisms) and multiple physical domains (fluid dynamics, chemical kinetics, particle diffusion, etc.) that are encountered in the study and analysis of biological organisms. |
| Format | OWL |
| Categories | Biomedical Resources, Chemical, Biological Process, Physicochemical, Phenotype |
| Groups |  |

## Metrics

| Metric | Value |
|--------|-------|
| Classes | 858 |
| Individuals | 0 |
| Properties | 69 |
| Max Depth | 12 |
| Max Child Count | 18 |
| Average Child Count | 3 |
| Classes With One Child | 7 |
| Classes With More Than 25 Children | 0 |
| Classes With No Definition | 299 |

## Projects using OPB

- [SemGen](https://bioportal.bioontology.org/projects/SemGen)
- [Neural ElectroMagnetic Ontologies](https://bioportal.bioontology.org/projects/NEMO)

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Source: https://library.schematica.io/model/1fb4413d570f401a986b68d3c0a94d0d