A type of metamorphism in which the mineralogy and texture of rocks are changed over a wide area by deep burial and heating associated with the large-scale forces of plate tectonics. In regional metamorphism, rocks that form closer to the margin of the tectonic plates, where the heat and pressure are greatest, often differ in their minerals and texture from those that form farther away. Compare contact metamorphism.
- Regional network
- Region code
noun a code used on a DVD to identify whether it can be played on a region’s DVD players Examples RPC-1 drives can play DVDs from any region (0-8) while RPC-2 drives play only from a particular region.
- Region of back
region of back n. Any of the topographical divisions of the back of the trunk, including the vertebral, sacral, scapular, infrascapular, and lumbar regions.
- Region of chest
region of chest n. Any of the topographical divisions of the chest, including the presternal, pectoral, mammary, inframammary, and axillary regions.