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 measurement of degree of abnormality of a stomach tumor based on histological assessment of the differentiation state of the cells comprising the tumor. The grade is derived from a one or more measurements matched against an objective or subjective ranking or rating system according to a specified formula or set of criteria.