Cite Us

Welcome to BioPortal, the world’s most comprehensive repository of biomedical ontologies.

For help using BioPortal, click on this icon:

Search all ontologies
Advanced Search
Find an ontology
Search resources
Advanced Resource Search
Most Viewed Ontologies
Ontology Views
SNOMED Clinical Terms 13,601
National Drug File 9,320
MedDRA 4,254
International Classification of Diseases 3,415
NCI Thesaurus 1,528
Statistics
Ontologies 377
Classes 5,773,559
Resources Indexed 48
Indexed Records 15,377,807
Direct Annotations 4,207,585,844
Direct Plus Expanded Annotations 41,361,390,867
Latest Notes
Test comment (EDAM bioinformatics operations, data types, formats, identifiers and topics)
24 days ago by jon

This is a test  

Test comment (EDAM bioinformatics operations, data types, formats, identifiers and topics)
24 days ago by jon

This is a test  

Wet Mass (Santa Barbara Coastal Observation Ontology)
4 months ago by leinfelder

This could be considered Wet Weight as well.  

New Term Proposal-Attestation (Radiology Lexicon)
11 months ago by rboden
New Term Proposal-Fluoroscopy time (Radiology Lexicon)
11 months ago by rboden
Latest Mappings
Gene (NCIT) <=> gene (TESTONTO)
REST Mapping 04/04/2014 by willy
Mixed ductal and lobular carcinoma of breast (SNOMEDCT) <=> Abnormal Cell (NCIT)
REST Mapping 03/05/2014 by catpes
Mixed ductal and lobular carcinoma of breast (SNOMEDCT) <=> Abnormal Cell (NCIT)
REST Mapping 03/05/2014 by catpes