Ontology of standardized units

Prefix
uo
Preferred Prefix
UO
Keywords
life science mathematics measurement obo ontology unit
Version
2023-05-25
License
CC-BY-3.0
Links
Homepage Repository OBO OWL
Contact
George Gkoutos   0000-0002-2061-091X   gkoutos
Pattern for Local Unique Identifiers

Local identifiers in Units of measurement ontology should match this regular expression:
^\d{7}$

Example Local Unique Identifier
0000080   Resolve
Pattern for CURIES

Compact URIs (CURIEs) constructed from Units of measurement ontology should match this regular expression:
^UO:\d{7}$

Example CURIE
UO:0000080
MIRIAM Namespace Embedded in LUI
The legacy MIRIAM standard for generating CURIEs with this resource annotates the namespaceEmbeddedInLUI as true. This means that you may see local unique identifiers that include a redundant prefix and delimiter (also known as a banana) and therefore look like a CURIE. For Units of measurement ontology, the banana looks like UO:. Therefore, you may see local unique identifiers for this resource that look like UO:0000080 (instead of the canonical form 0000080) and CURIEs for this resource that look like UO:UO:0000080 (instead of the canonical form UO:0000080). The Bioregistry will automatically strip off the banana when standardizing local unique identifiers and CURIEs.
Publications
2012 The Units Ontology: a tool for integrating units of measurement in science
Ontology

A summary of the relations in the Bioregistry schema can be found here.

Appears In (4) (bioregistry.schema:0000018 )
AGRO MS RBO SCDO
Metaregistry Units of measurement ontology

The metaregistry provides mappings between the Bioregistry and other registries. There are 10 mappings to external registries for this resource with 2 unique external prefixes.

Registry Name Registry Metaprefix External Prefix Curate
AberOWL AberOWL logo aberowl UO
BioContext biocontext UO
BioPortal BioPortal Prefixes logo bioportal UO
FAIRSharing FAIRSharing logo fairsharing FAIRsharing.mjnypw
Identifiers.org Identifiers.org logo miriam uo
N2T Name-to-Thing logo n2t uo
OBO Foundry OBO Foundry logo obofoundry uo
OLS Ontology Lookup Service logo ols uo
OntoBee OntoBee logo ontobee UO
Prefix Commons Prefix Commons logo prefixcommons uo
RDF Information

When using this resource in RDF, the following URI format should be used:

http://purl.obolibrary.org/obo/UO_$1

Extra Providers

Additional providers curated in the Bioregistry are listed here.

Code Name URL
bio2rdf Bio2RDF http://bio2rdf.org/uo:0000080