Some scientists like to play with words and they got tired of the flat earthers pointing out the world was not a sphere. It isn't. It is an oblate spheroid, bulging at the equator and flatter at the poles. So it is Almost Spherical. But to trick the dumbass flat earthers into using the word, they call is Atmospheric instead. They chuckle each time a flat earther uses the term because scientists are like that.