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).
Any value resulting from the quantification of a morphological or physiological parameter of leukocytes, largely colorless blood corpuscles capable of ameboid movement, whose chief function is to protect the body against microorganisms and other disease-causing entities.