Azathoth

Nuclear power, according to Brian Lumley. The 'blind idiot god' at the 'centre of creation' was, in Lumley's Mythos books starring Titus Crow, a symbol for 'the awesome power of the atom'.

An inclarity that I never quite managed to settle in my mind - during the first of his Titus Crow novels, 'The Burrowers Beneath', Lumley has his heroes using controlled nuclear explosions to destroy the Bad Guys, in this case vaguely Cthuloid spawn of Shudde-M'ell; and yet later reveals Azathoth, still a powerful symbol in the CCD mythology, to be, well, nuclear power. Logically, they should thrive on the stuff and reappear as Super-Evil Radioactive Beasties (tm)?

Don't be silly. It's Cthulhu. Logic doesn't come into it.

His name is apparently a compound of two different particles, aza and Thoth. Thoth is clearly related to the name of the ancient Egyptian deity Tahuti, whose name is mispronounced in Greek as Thoth. Aza is a slight verbal corruption of the Arabic word izzu, meaning power, might or strength. The name written in Arabic would thus be Izzu Tahuti, or 'Power of Thoth'. Apparantly Theodorus Phileatas translated Tahuti into Thoth, to him the more familiar form. In Greek the full name became Azathoth, and so the deity would later become known in Latin and English.

Latin: Azathoth
Greek: azathoth
Arabic: 'Izzu Tahutiz

-From the notes in Call of Cthulhu, 5th Edition.