A process existing in or produced by nature (rather than by the intent of human beings). For example, volcanic activity and tidal activities.(noun)
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Use "natural process" in a sentence
"To look upon disease as detrimental to the national interest, as a natural process under changed but yet natural conditions, as a process to be studied objec - tively at the bedside, in the dissecting room, and in the laboratory, was part of the “Enlightenment” of the"