تعريف tree rings في الإنجليزية الإنجليزية القاموس.
A series of concentric layers of wood found within a tree that show growth patterns
Annual growth increments of trees that indicate, among other factors, the climatic conditions that enhance or limit growth Tree ring widths and indexes have been used to search for solar-terrestrial relationships and climatic cycles and to reconstruct past climates See also "dendroclimatology " and "dendrochronology "