English: environmental appraisal
Welsh: arfarniad amgylcheddol
Subject: Amgylchedd
English definition: The process of weighing all the policies in a development plan for their global, national and local implications.
Welsh definition: Proses pwyso a mesur yr holl bolisïau mewn cynllun datblygu ar gyfer eu goblygiadau byd-eang, cenedlaethol a lleol.