1. a process existing in or produced by nature (rather than by the intent of human beings); - Example: "the action of natural forces" - Example: "volcanic activity" [syn: natural process, natural action, action, activity]
WordNet (r) 3.0 (2006):
natural action
n 1: a process existing in or produced by nature (rather than by
the intent of human beings); "the action of natural
forces"; "volcanic activity" [syn: natural process,
natural action, action, activity]