A little history here:
Newton’s Law of Universal Gravitation
“Every object in the universe attracts every other object with a force directed along the line of centers for the two objects that is proportional to the product of their masses and inversely proportional to the square of the separation between the two objects.”
F=Gm1m2/r2
Where:
F equals the gravitational force between two objects
M1 equals the mass of the first object
M2 equals the mass of the second object
R equals the distance between the objects
G equals the universal constant of gravitation = (6.6726 )* 10-11 N*m2/kg2 (which is still being refined and tested today)
(BTW this is a simple form of the equation and is only applied to point sources. Usually it is expressed as a vector equation)
Even though it works well for most practical purposes, this formulation has problems.
A few of the problems are:
It shows the change is gravitational force is transmitted instantaneously (Violates C), assumes an absolute space and time (this contradicts Special Relativity), etc.
Enter Einstein’s General Theory of Relativity
In 1915 Einstein developed a new theory of gravity called General Relativity.
A number of experiments showed this theory explained some of the problems with the classical Newtonian model. However, this theory like all others is still being explored and tested.
So, YES, the term “Gravitational Theory” is quite valid.
Course most people can observe gravity in action daily. Nobody can observe evolution (except God, who is the only one that lives long enough to percieve such slow magic).
Feel better now? Gravity is a law, and can be proven - an apple falls from the tree. I frankly don't care what you use to back up your allegation that its only a theory. Seems to me like your backpedalling and equating gravity and evolution with the same scientific soundness. Woe is you.