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 measurement of the complex postural reaction by which an organism can assume an optimal position when there has been a departure from it, for example, the ability of an animal to turn its body in space so that its paws or feet are pointed at the ground during a fall or to return to sternal recumbency after being placed on its back or side.