concentric areas on the scutes of some turtles; each ring indicates a season's growth
the layers of wood a tree adds each growing season. These rings frequently are visible when a tree is cut and can be used to estimate its age and growth rate. See also annual rings.
New wood formed by the annual growth of a tree. (Also called annual rings).
Features of woody stems produced by plants growing in areas with seasonal (as opposed to year-long) growth. The growth ring marks the position of the vascular cambium at the cessation of the previous year's growth. PICTURE
Increments of growth which appear as figures in the floor. Seen in a cross section of a log as rings around the center of the log. When only one growth ring is formed during a year, it is called an annual growth ring. Viewing the end of a solid board, they appear in bands or layers.
This refers to the layer of growth that the tree puts on in one year. The annual growth rings can be seen in the end grain of lumber.
Usually represent the yearly or seasonal cycle of growth. Each ring is composed of two parts: the inner part, called earlywood, or springwood, is lighter and softer and is produced in the spring; the outer part, called latewood, or summerwood, is added later in the growing season.