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The National Center for Biomedical Ontology is one of the National Centers for Biomedical Computing supported by the NHGRI, the NHLBI, and the NIH Common Fund under grant U54-HG004028.
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	Cancer Biomedical Informatics Grid (caBIG)
	Clinical and Translational Science Awards (CTSA)
	Consultative Group on International Agricultural Research (CGIAR)
	CTSA Health Ontology Mapper (CTSA-HOM)
	OBO Foundry (OBO Foundry)
	Proteomics Standards Initiative (PSI)
	Unified Medical Language System (UMLS)
	WHO Family of International Classifications (WHO-FIC)

	All Organisms
	Anatomy
	Animal Development
	Animal Gross Anatomy
	Arabadopsis
	Biological Process
	Biomedical Resources
	Cell
	Cellular anatomy
	Chemical
	Development
	Dysfunction
	Ethology
	Experimental Conditions
	Fish Anatomy
	Gene Product
	Genomic and Proteomic
	Gross Anatomy
	Health
	Human
	Human Developmental Anatomy
	Imaging
	Immunology
	Microbial Anatomy
	Molecule
	Mouse Anatomy
	Neurologic Disease
	Neurological Disorder
	Other
	Phenotype
	Physicochemical
	Plant
	Plant Anatomy
	Plant Development
	Protein
	Subcellular
	Subcellular anatomy
	Taxonomic Classification
	Vocabularies
	Yeast

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	ABA Adult Mouse Brain (ABA)
	Adverse Event Reporting ontology (AERO)
	African Traditional Medicine (ATMO)
	AI/RHEUM (AIR)
	Amino Acid (amino-acid)
	Amphibian gross anatomy (AAO)
	Amphibian taxonomy (ATO)
	Anatomical Entity Ontology (AEO)
	Animal natural history and life history (ADW)
	apollo-akesios (apollo)
	Ascomycete phenotype ontology (APO)
	Basic Formal Ontology (BFO)
	Basic Vertebrate Anatomy (basic-vertebrate-gross-anatomy)
	Bilateria anatomy (BILA)
	BioAssay Ontology (BAO)
	Bioinformatics operations, types of data, data formats and topics (EDAM)
	Biological imaging methods (FBbi)
	Biomedical Resource Ontology (BRO)
	BioModels Ontology (BioModels)
	BioPAX (BP)
	BioPortal Metadata (BPMetadata)
	BioTop (BT)
	BIRNLex (birnlex)
	Bleeding History Phenotype (BHO)
	Body System (bodysystem)
	Bone Dysplasia Ontology (BDO)
	Breast Cancer Grading Ontology (BCGO)
	Breast tissue cell lines (MCBCC)
	BRENDA tissue / enzyme source (BTO)
	Brucellosis Ontology (IDOBRU)
	C. elegans development (WBls)
	C. elegans gross anatomy (WBbt)
	C. elegans phenotype (WBPhenotype)
	Cancer Chemoprevention Ontology (CanCO)
	Cancer Research and Management ACGT Master Ontology (ACGT)
	CAO (CAO)
	Cardiac Electrophysiology Ontology (EP)
	CareLex (CareLex)
	Cell Behavior Ontology (CBO)
	Cell Cycle Ontology (CCO)
	Cell Line Ontology (CLO)
	Cell line ontology (MCCL)
	Cell line ontology (MCCL)
	Cell Phenotype Ontology (CPO)
	Cell type (CL)
	Cereal Plant Development (GRO)
	Cereal plant gross anatomy (GRO)
	Cerebrotendinous xanthomatosis (CTX)
	Chemical entities of biological interest (CHEBI)
	Chemical Information Ontology (CHEMINF)
	Clinical Measurement Ontology (CMO)
	Cognitive Atlas (cogat)
	Cognitive Paradigm Ontology (CogPO)
	Common Anatomy Reference Ontology (CARO)
	Common Terminology Criteria for Adverse Events (CTCAE)
	Comparative Data Analysis Ontology (CDAO)
	Computational Neuroscience Ontology (CNO)
	Computer-based Patient Record Ontology (CPR)
	COSTART (CST)
	CRISP Thesaurus, 2006 (CSP)
	Crop Ontology (CO)
	Current Procedural Terminology (CPT)
	Dendritic cell (DC_CL)
	DermLex: The Dermatology Lexicon (DermLex)
	Diagnostic Ontology (DiagnosticOnt)
	Dictyostelium discoideum anatomy (DDANAT)
	DIKB-Evidence-Ontology (dikb-evidence)
	Drosophila development (FBdv)
	Drosophila gross anatomy (FBbt)
	eagle-i research resource ontology (ERO)
	Electrocardiography Ontology (ECG)
	Emotion Ontology (MFOEM)
	Environment Ontology (ENVO)
	Enzyme Mechanism Ontology (EMO)
	Epilepsy (EpilepOnto)
	Epoch Clinical Trial Ontologies (ClinicalTrialOntology)
	Event (INOH pathway ontology) (IEV)
	Evidence codes (ECO)
	eVOC (Expressed Sequence Annotation for Humans) (EV)
	ExO (ExO)
	Experimental Conditions Ontology (XCO)
	Experimental Factor Ontology (EFO)
	Family Health History Ontology (FHHO)
	FDA Medical Devices (2010) (FDA-MedDevice)
	Fission Yeast Phenotype Ontology (FYPO)
	Fly taxonomy (FBsp)
	FlyBase Controlled Vocabulary (FBcv)
	Foundational Model of Anatomy (FMA)
	Fungal gross anatomy (FAO)
	Galen (GALEN)
	Gazetteer (GAZ)
	Gene Ontology (GO)
	Gene Ontology Extension (GO)
	Gene Regulation Ontology (BOOTStrep)
	Gene Regulation Ontology (GRO)
	General Formal Ontology (GFO)
	General Formal Ontology: Biology (GFO-Bio)
	GeoSpecies Ontology (geospecies)
	Habronattus courtship (HC)
	HCPCS (HCPCS)
	Health Level Seven (HL7)
	HEALTH_INDICATORS (HLTH_INDICS)
	Hewan Invertebrata (invertebrata)
	HOM-HARVARD (HOM_HARVARD)
	HOM_ElixhauserScores (HOM_EHS)
	Host Pathogen Interactions Ontology (HPIO)
	HUGO (HUGO)
	Human developmental anatomy, abstract version (EHDAA)
	Human developmental anatomy, abstract version, v2 (EHDAA2)
	Human developmental anatomy, timed version (EHDA)
	Human disease ontology (DOID)
	Human Phenotype Ontology (HP)
	Hymenoptera Anatomy Ontology (HAO)
	ICD-10-PCS (ICD10PCS)
	ICD10 (ICD10)
	ICD10CM (ICD10CM)
	ICPC-2 PLUS (ICPC2P)
	ICPS Network (ICPS)
	IMGT-ONTOLOGY (IMGT)
	Infectious Disease Ontology (IDO)
	Influenza Ontology (FLU)
	Information Artifact Ontology (IAO)
	Interaction Network Ontology (INO)
	International Classification for Nursing Practice (ICNP)
	International Classification of External Causes of Injuries (ICECI)
	International Classification of Diseases (ICD9CM)
	International Classification of Functioning, Disability and Health (ICF) (ICF)
	International Classification of Primary Care (ICPC)
	IxnO (IxnO)
	Kinetic Simulation Algorithm Ontology (KiSAO)
	Leukocyte Surface Markers (LSM)
	linkingkin2pep (k2p)
	Lipid Ontology (LiPrO)
	Loggerhead nesting (LHN)
	Logical Observation Identifier Names and Codes (LNC)
	MaHCO - An MHC Ontology (MHC)
	Maize gross anatomy (ZEA)
	Malaria Ontology (IDOMAL)
	Mammalian phenotype (MP)
	Mass spectrometry (MS)
	Master Drug Data Base (MDDB)
	Measurement Method Ontology (MMO)
	Medaka fish anatomy and development (MFO)
	MedDRA (MDR)
	Medical Subject Headings (MSH)
	MedlinePlus Health Topics (MEDLINEPLUS)
	MeGO (MeGO)
	Mental Functioning Ontology (MF)
	MESH Thesaurus (OWL version) (MESH-OWL)
	Metagenome/Microbes Environmental Ontology (MEO)
	Metathesaurus CPT Hierarchical Terms (MTHCH)
	MGED Ontology (MO)
	Minimal anatomical terminology (MAT)
	MIxS Controlled Vocabularies (MCV)
	Molecule role (INOH Protein name/family name ontology) (IMR)
	Mosquito gross anatomy (TGMA)
	Mosquito insecticide resistance (MIRO)
	Mouse adult gross anatomy (MA)
	Mouse gross anatomy and development (EMAP)
	Mouse pathology (MPATH)
	Multiple alignment (MAO)
	NanoParticle Ontology (NPO)
	National Drug Data File (NDDF)
	National Drug File (NDFRT)
	Natural Products Ontology (NatPrO)
	NCBI organismal classification (NCBITaxon)
	NCI Thesaurus (NCIt)
	Neomark Oral Cancer Ontology (NeoMark)
	Neomark Oral Cancer-Centred Ontology (NeoMarkOntology)
	Neural ElectroMagnetic Ontologies (NEMO)
	Neural Motor Recovery Ontology (NeuMORE)
	Neural-Immune Gene Ontology (NIGO)
	Neuro Behavior Ontology (NBO)
	NIF Cell (NIF_Cell)
	NIF Dysfunction (NIF_Dysfunction)
	NIFSTD (nif)
	NMR-instrument specific component of metabolomics investigations (NMR)
	Non Randomized Controlled Trials Ontology (NonRCTOntology)
	Nursing Interventions Classification (NIC) (NIC)
	OBO relationship types (OBO_REL)
	OBOE (OBOE)
	OBOE SBC (oboe-sbc)
	Online Mendelian Inheritance in Man (OMIM)
	Ontologia alternativa (onto)
	Ontologia proj alternativa (ontologia)
	Ontology for Biomedical Investigations (OBI)
	Ontology for disease genetic investigation (ODGI)
	Ontology for Drug Discovery Investigations (DDI)
	Ontology for General Medical Science (OGMS)
	Ontology for Genetic Interval (OGI)
	Ontology for MicroRNA Target Prediction (OMIT)
	Ontology for Parasite LifeCycle (OPL)
	Ontology of Adverse Events (OAE) (OAE)
	Ontology of Clinical Research (OCRe) (OCRe)
	Ontology of Data Mining (OntoDM)
	Ontology of Experimental Variables and Values (OoEVV)
	Ontology of General Purpose Datatypes (OntoDT)
	Ontology of Geographical Region (OGR)
	Ontology of Glucose Metabolism Disorder (OGMD)
	Ontology of homology and related concepts in biology (HOM)
	Ontology of Language Disorder in Autism (LDA)
	Ontology of Medically Related Social Entities (OMRSE)
	Ontology of Physics for Biology (OPB.properties)
	Orphanet Ontology of Rare Diseases (OntoOrpha)
	Parasite Experiment Ontology (PEO)
	Pathogen transmission (TRANS)
	Pathway ontology (PW)
	Pediatric Terminology (PedTerm)
	PHARE (PHARE)
	Pharmacovigilance Ontology (PVOnto)
	PharmGKB-in-OWL (pharmgkb-owl)
	PhenomeBLAST ontology (phenomeblast-owl)
	Phenotype Fragment Ontology (PFO)
	Phenotypic quality (PATO)
	PhenX Toolkit (PhenXTK)
	Phylogenetic Ontology (PhylOnt)
	Physical Medicine and Rehabilitation (PMR)
	PhysicalFields (Field)
	Physician Data Query (PDQ)
	Physico-chemical methods and properties (FIX)
	Physico-chemical process (REX)
	Pilot Ontology (POL)
	PKO_Re (PKO)
	Plant Anatomy (PO)
	Plant environmental conditions (EO)
	Plant Growth and Development Stage (PO)
	Plant Ontology (PO)
	Plant Trait Ontology (TO)
	Platynereis stage ontology (PD_ST)
	PMA 2010 (pma)
	Protein modification (MOD)
	PRotein Ontology (PRO) (PR)
	Protein Ontology (pro-ont)
	Protein-protein interaction (MI)
	Proteomics data and process provenance (ProPreO)
	Proteomics Pipeline Infrastructure for CPTAC (CPTAC)
	Pseudogene (pseudo)
	Quadrupedal Gait (CAMRQ)
	Quantitative Imaging Biomarker Ontology (QIBO)
	Quantities, Units, Dimensions and Types (QUDT)
	RadLex (RID)
	Randomized Controlled Trials (RCT) Ontology (RCTOntology)
	Rat Strain Ontology (RS)
	Read Codes, Clinical Terms Version 3 (CTV3) (RCD)
	Reproductive trait and phenotype ontology (REPO)
	RNA ontology (RNAO)
	Role Ontology (RoleO)
	RxNORM (RXNORM)
	Sample processing and separation techniques (SEP)
	SemanticScience Integrated Ontology (SIO)
	Sequence types and features (SO)
	Situation-Based Access Control (SitBAC)
	Skin Physiology Ontology (SPO)
	Sleep Domain Ontology (SDO)
	Smoking Behavior Risk Ontology (SBRO)
	SNOMED Clinical Terms (SNOMEDCT)
	SNP-Ontology (SNPO)
	Software Ontology (SWO)
	Solanaceae Phenotype Ontology (SPTO)
	SoyOntology (SOY)
	Spatial Ontology (BSPO)
	Spider Ontology (SPD)
	Student Health Record (SHR)
	Subcellular Anatomy Ontology (SAO) (SAO)
	Suggested Ontology for Pharmacogenomics (SOPHARM)
	Symptom Ontology (SYMP)
	Synapse Ontology (SYN)
	Syndromic Surveillance Ontology (SSO)
	SysMO-JERM (JERM)
	Systems Biology (SBO)
	Systems Chemical Biology/Chemogenomics (Chem2Bio2OWL)
	Taxonomic rank vocabulary (TAXRANK)
	Teleost Anatomy Ontology (TAO)
	Teleost taxonomy (TTO)
	Terminology for the Description of Dynamics (TEDDY)
	Terminology of Anatomy of Human Embryology (TAHE)
	Terminology of Anatomy of Human Histology (TAHH)
	thesaurus (thesaurus)
	thesaurus alternativa (thealternativa)
	Tick gross anatomy (TADS)
	Time Event Ontology (TEO)
	Tissue Microarray Ontology (TMA)
	TOK_Ontology (TOK)
	Traditional Medicine Constitution Value Set (TM-CONST)
	Traditional Medicine Meridian Value Sets (TM-MER)
	Traditional Medicine Other Factors Value Set (TM-OTHER-FACTORS)
	Traditional Medicine Signs and Symptoms Value Set (TM-SIGNS-AND-SYMPTS)
	Translational Medicine Ontology (TMO)
	Uber anatomy ontology (UBERON)
	uni-ece (uni-ece)
	Units of measurement (UO)
	Units Ontology (UnitsOntology)
	Vaccine Ontology (VO)
	VANDF (VANDF)
	Vertebrate Anatomy Ontology (VAO)
	vertebrate Homologous Organ Groups (vHOG)
	Vertebrate Trait Ontology (VT)
	VIVO (vivo)
	Web-Service Interaction Ontology (WSIO)
	Wheat trait (CO_Wheat)
	WHO Adverse Reaction Terminology (WHO)
	Xenopus anatomy and development (XAO)
	Yeast phenotypes (YPO)
	Zebrafish anatomy and development (ZFA)