Defining the Science of Reading and SoR Research Standards

If you threw a rock into the middle of a pond but that rock was not a rock, can you still be said to have thrown a rock? Likewise, can a standard be said to be a standard if it is not standardized?

We know that science is a good thing, and using science in reading instruction is a good thing. But what exactly is meant by the “science of reading”? What exactly is the Science of Reading? Is it a noun? Is it a verb? Or has it become an adjective or perhaps a metaphor used to indicate something else?