noun
: a process (as Brownian movement or genetic drift) consisting of a sequence of steps (as movements or changes in gene frequency) each of whose characteristics (as magnitude and direction) are determined by chance
noun
: a process (as Brownian movement or genetic drift) consisting of a sequence of steps (as movements or changes in gene frequency) each of whose characteristics (as magnitude and direction) are determined by chance
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012