Definition of natural disaster : a sudden and terrible event in nature (such as a hurricane, tornado, or flood) that usually results in serious damage and many deaths The earthquake was one of the worst natural disasters of this century.
Synthesis, Chemical. the planned production of complex compounds from simpler compounds based on a knowledge of the reactantsâ chemical structure and reactivity. Chemical synthesis usually implies a sequence of several chemical processes (steps). In the early period in the development of chemistry, chemical synthesis was carried out mainly for inorganic compounds and was fortuitous in nature.
Synthesis is the act of combining elements to form something new. If you describe your bedroom decor as a synthesis of Andy Warhol and Punk Rock, we'll know you mean a mixture of these two styles. Synthesis is just as comfortable in the concrete realm as it is in the abstract. Scientists use it to talk about what happens when chemicals combine â think of photosynthesis: the process by which plants synthesize light, carbon dioxide, and water to produce food. If you call a movie Batman meets Titanic, then that's synthesis as well.