I think that's taken already...
what if it not round top?
Then I'm pretty sure the universe collapses into a singularity.
Hi Perseas, I am surprised that this has not been used to name an atomizer...especially a Greek atomizer. It seems so simple and appropriate.
--- GP ATMOSPHERE --- a word created in the 17th century from Greek ἀτμός [atmos] "vapor"[1] and σφαῖρα [sphaira] "sphere"
Win! I second it. Or perhaps Atmosphera, which is the actual Greek word, but also implies "sphera", which means bullet.