Secondary Source
The opposite of phosphorylation is dephosphorylation. Source: http://en.wikipedia.org/wiki/Dephosphorylation
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.
A shadow is cast by an opaque body the opposite side of the body from the source of illumination.
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
In-sourcing is using resources inside the company or country to do business, basically the opposite of outsiding.
many, much source: http://thesaurus.reference.com
Valdez Alaska is on the opposite side of the Pacific Ocean from Japan.
Shadows are always directly opposite the light source. And the sun moves across the sky, the shadow will also move to remain on the opposite side.