[Old_Mil]

Definition of a scientific theory (emphasis mine): "A proposed model, explanation or description of the manner of interaction of a set of natural phenomena, capable of predicting future occurences or observations of the same kind, and capable of being tested through experiment or otherwise verified through empirical observation."

So clearly, if you want to play the dictionary game, evolution doesn't rise to the standard of a scientific theory but is more accurately characterized as a hypothesis.

[Right Wing Professor]

capable of being tested through experiment or otherwise verified through empirical observation."

Evolution qualifies on both counts.