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.
LINK / CITE ADD TO WORD LIST. noun. Synthesis is defined as combining a number of different parts or ideas to come up with a new idea or theory. An example of synthesis is when you read several books and use all of the information to come up with a thesis on the subject. pl. -Â·sesÂ·. the putting together of parts or elements so as to form a whole.