mulch(A layer of organic material applied to the surface of the ground to retain moisture; mulching is the spreading of leaves, straw or other loose material on the ground to prevent erosion, evaporation or freezing of plant roots)
multilateral agreement(Multilateralism stands for a long-held but rarely achieved ideal, namely the voluntary co-operation of nations for peace and development. Multilateral initiatives are undermined or diluted by ultra-nationalist, bilateral and regional initiatives. Multilateralism may be undercut by the uncoordinated decisions of those contributing to it. Multilateralism constitutes the democracy of international society. An enlightened multilateralism enhances the specific interests of states while advancing their common cause)
multimedia technology(Any technical means used to combine text, sound, still or animated images and video in computers and electronic products, often allowing audience interactivity)