Source:http://linkedlifedata.com/resource/umls/id/C0026377
MSH: The characteristic three-dimensional shape of a molecule.,CSP: any of the spatial arrangements of a molecule that can be obtained by rotation of the atoms about a single bond.,NCI: The three-dimensional arrangement of something in space. Often refers to the arrangement of the side groups on a molecule which can freely rotate into different positions without breaking any bonds. (from On-line Medical Dictionary)