The term 'Oil-Yielding Tropical Plant' can be summarized as a plant that grows in tropical climates and produces oil. One example of such a plant is SESAME, which is a six letter word. SESAME is a flowering plant that is native to tropical regions of Africa and Asia. It is widely cultivated for its edible seeds, which are used in many cuisines around the world. The oil extracted from SESAME seeds is also used in cooking, cosmetics, and pharmaceuticals.