Your can try to make up a language of your own to further your evangelical objectives, but in English an atheist is defined as. One who disbelieves or denies the existence of God or gods.
"This requires the atheist to believe the world around us came about solely through radom reactions between matter and energy."
No. Atheist do not believe that. That’s a misrepresentation promoted by those that seem so insecure in their faith that they need to misrepresent competing ideologies. From Is Evolution Random:
"As one Creationist put it, Random forces could not have produced a world of living things. Scientists agree. That is why the Theory of Evolution contains something which is not random. Darwin said that there was natural selection. And today, Evolution contains other kinds of selection. This is entirely different from saying that evolution is directed.Some parts of the history of life seem to be pretty random. Take, for example, the meteorite that killed all the dinosaurs. However, selection is different. It means that somehow, some individuals succeeded in leaving more descendants than other individuals did. And, it means that they succeeded for some reason. Reasons are not random. "
Are you saying -- via your link -- that life came into existence by natural selection?