naturian

Noun

 * 1)  One who studies nature; one who ascribes natural rather than supernatural or divine explanations to phenomena.
 * 2) * 1602, W. Watson, Decacordon, 358, quoted in part in the NED and in full in 1974, David McGregor Rogers, English Recusant Literature, 1558-1640:
 * noteth in that place. Amongst Philosophers Aristotle was wise, profound; Plato humane, diuine; Pythagoras hot, precise; and all sound exquisite naturians. Amongst Diuines, Saint Augustine plaine; Saint Gregerie mild;