Secondary Source
Source: Wikipedia http://en.wikipedia.org/wiki/Kashrut
To derive something is to obtain information from a specific source, based on a logical proof. The opposite of this is to use intuition, or feelings. So the opposite of derived would be intuited.
Your shadow will fall in the direction opposite the source of light - with you between the light source and the shadow. The direction of your shadow relative to you will depend on what direction you are facing.If you are facing toward the light source, the shadow will be behind you.If you are facing away from the light source, it will be in front of you.If you have the light source to your right, the shadow will be to your left.If you have the light source to your left, the shadow will be to your right.If the light source is directly above you, the shadow will be directly under you.If you move past a light source, your shadow will move from behind you to beside you and then to in front of you.
The opposite of a clone is an original. A clone is an exact genetic copy of an organism, whereas an original refers to the first or source version of something.
Upstream or up river
A shadow is cast by an opaque body the opposite side of the body from the source of illumination.
Upstream or up river
The shadow of an object is formed in the direction opposite to the light source because the light rays that illuminate the object cannot pass through it, creating an area of darkness behind the object where these rays are blocked. This results in the shadow being cast in the direction away from the light source.
A shadow is formed in the opposite direction of the light source. For example, when the light source is behind an object, the shadow is cast in front of the object.
Valdez Alaska is on the opposite side of the Pacific Ocean from Japan.
In-sourcing is using resources inside the company or country to do business, basically the opposite of outsiding.