Natural a. : Fixed or determined by nature; pertaining to the constitution of a thing; belonging to native character; according to nature; essential; characteristic; not artifical, foreign, assumed, put on, or acquired; as, the natural growth of animals or plants; the natural motion of a gravitating body; natural strength or disposition; the natural heat of the body; natural color.

Natural a. : Conformed to the order, laws, or actual facts, of nature; consonant to the methods of nature; according to the stated course of things, or in accordance with the laws which govern events, feelings, etc.; not exceptional or violent; legitimate; normal; regular; as, the natural consequence of crime; a natural death.

Natural a. : Having to do with existing system to things; dealing with, or derived from, the creation, or the world of matter and mind, as known by man; within the scope of human reason or experience; not supernatural; as, a natural law; natural science; history, theology.

Natural a. : Conformed to truth or reality

Natural a. : Springing from true sentiment; not artifical or exaggerated; -- said of action, delivery, etc.; as, a natural gesture, tone, etc.

Natural a. : Resembling the object imitated; true to nature; according to the life; -- said of anything copied or imitated; as, a portrait is natural.

Natural a. : Having the character or sentiments properly belonging to one's position; not unnatural in feelings.

Natural a. : Connected by the ties of consanguinity.

Natural a. : Begotten without the sanction of law; born out of wedlock; illegitimate; bastard; as, a natural child.

Natural a. : Of or pertaining to the lower or animal nature, as contrasted with the higher or moral powers, or that which is spiritual; being in a state of nature; unregenerate.

Natural a. : Belonging to, to be taken in, or referred to, some system, in which the base is 1; -- said or certain functions or numbers; as, natural numbers, those commencing at 1; natural sines, cosines, etc., those taken in arcs whose radii are 1.

Natural a. : Produced by natural organs, as those of the human throat, in distinction from instrumental music.

Natural a. : Of or pertaining to a key which has neither a flat nor a sharp for its signature, as the key of C major.

Natural a. : Applied to an air or modulation of harmony which moves by easy and smooth transitions, digressing but little from the original key.

Natural n. : A native; an aboriginal.

Natural n. : Natural gifts, impulses, etc.

Natural n. : One born without the usual powers of reason or understanding; an idiot.

Natural n. : A character [/] used to contradict, or to remove the effect of, a sharp or flat which has preceded it, and to restore the unaltered note.

Example:
Is Natural almond oil just as good for your skin as a more expensive daycream?

Taxonomy
Earth, species, lakes, plants, ecosystems, oceans, science, body, atmosphere, climate, weather, animals, Wilderness, life forms, planet, wilderness areas, Geology, NASA.

Defination from the web:
... Much attention has been given to preserving the natural characteristics of Hopetoun Falls, Australia, while allowing ample access for visitors. ...