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).
The number of fat cells in a specified sample of adipose tissue. A fat cell is a connective tissue cell specialized for the synthesis and storage of fat; such cells consist of a large cytoplasmic vesicle filled with globules of triglycerides with the nucleus displaced to one side and the cytoplasm seen as a thin line around the fat vesicle.