annual ring(redirected from year ring)
Also found in: Thesaurus, Encyclopedia.
A growth ring formed during a single year.
(Botany) a ring of wood indicating one year's growth, seen in the transverse section of stems and roots of woody plants growing in temperate climates. Also called: tree ring
a yearly formation of new wood in woody plants, observable as a ring on the cross section of a tree trunk.Also called tree ring.
See under growth ring.