TERM OF THE WEEK
Physiographic Division: A large portion of a continent of which all parts are similar in geologic structure and climate at a small scale (e.g., 1:5,000,000) and which has consequently had a unified geomorphic history and whose pattern of relief or landforms differ significantly from that of adjacent areas. Examples: the Laurentian Upland, Rocky Mountain System, and Interior Highlands of the USA (Schoeneberger and Wysocki, personal communication, 2013).