A chief measure of price inflation is the inflation rate, the annualized percentage change in a general price index, usually the consumer price index, over time. The opposite of inflation is deflation. Inflation has affected many economies in various positive and negative ways.
forestry - the science of planting and caring for forests and the management of growing timber. undercut - a notch cut in the trunk of tree in order to determine the direction of its fall. biological science, biology - the science that studies living organisms. silviculture - the branch of forestry dealing with the development and care of forests. stool - (forestry) the stump of a tree that has been felled or headed for the production of saplings.
Lumber (American English; used only in North America) or timber (used in the rest of the English speaking world) is a type of wood that has been processed into beams and planks, a stage in the process of wood production. Lumber is mainly used for structural purposes but has many other uses as well. There are two main types of lumber.