Definition of "Natural" :

noun: (craps) a first roll of 7 or 11 that immediately wins the stake

noun: a notation cancelling a previous sharp or flat

noun: someone regarded as certain to succeed

"He's a natural for the job."

adjective: free from artificiality

"A natural reaction."

adjective: being talented through inherited qualities

"A natural leader."

adjective: (of a parent or child) related by blood; genetically related

"Natural parent."

adjective: in accordance with nature; relating to or concerning nature

"A very natural development."

adjective: existing in or produced by nature; not artificial or imitation

"A natural pearl."

adjective: existing in or in conformity with nature or the observable world; neither supernatural nor magical

"A perfectly natural explanation."

adjective: (of a musical note) being neither raised nor lowered by one chromatic semitone

"A natural scale."

adjective: functioning or occurring in a normal way; lacking abnormalities or deficiencies

"It's the natural thing to happen."

adjective: (used especially of commodities) being unprocessed or manufactured using only simple or minimal processes

"Natural yogurt."

adjective: unthinking; prompted by (or as if by) instinct

"A cat's natural aversion to water."