plural of phage therapy

(uncountable) The science of planting and growing trees in forests. / (uncountable) The art and practice of planting and growing trees in forests.

A hamlet in Carmarthenshire, Wales (OS grid ref SN6330). / A village in Powys, Wales (OS grid ref SO1823). / A suburb of Swansea, Wales (OS grid ref SS6494).

Not explained; of unknown cause or origin.