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The Clinical Measurement Ontology (CMO), Measurement Methods Ontology (MMO), and Experimental Condition Ontology (XCO) are currently being developed at the Rat Genome Database. For more information about these vocabularies please see Shimoyama et al. Three ontologies to define phenotype measurement data. Front Genet. 2012;3:87. Epub 2012 May 28 or contact us (

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Accession:XCO:0000511 term browser browse the term
Definition:Any condition in which the main influencing factor is a substance is a chemical compound derived from the linkage of an organic or inorganic acid and an alcohol, phenol, heteroarenol, or enol with the loss of water (H2O) formed from one hydrogen derived from an acidic hydroxy group of the acid and an -OH (hydroxy) group of the alcohol.
Synonyms:xref: CHEBI:35701

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  experimental condition 2376
    chemical 707
      chemical with specified structure 549
        ester 0
          Benfluorex 0
          Kolliphor HS 15 0
          Omacor 0
          dibutyl phthalate 0
          fenofibrate 0
          lacidipine 0
          methylcellulose 0
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