Definition from Wiktionary, the free dictionary
See also: ring-bark
- To remove the bark from a tree in a ring all the way around its trunk, normally killing the tree (because nutrients are carried through the phloem, the layers immediately under the bark, which layers are damaged by the process).
Ring-bark seems about twice as common as ringbark (without hyphen) in books. Girdling is much more common in the US.