forestry /ˈfɒɹ.ɪst.ɹi/ noun6 •The science of planting and growing trees in forests.She studied forestry and environmental management. •The art and practice of planting and growing trees in forests. •The art and practice of cultivating, exploiting and renewing forests for commercial purposes.The region depends heavily on forestry for employment. •Commercial tree farming. •A tree farm. •A forest-covered area. formsforestries