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 (http://rgd.mcw.edu/contact/index.shtml).
A quantification of a parameter of a substance in the blood essential to the metabolism of a particular organism or to a particular metabolic process. In biochemistry, a metabolite is an intermediate or end product of metabolism. The term metabolite is usually used for small molecules.