Need help, what's this called?

[Darin]

When you see a red circle with a diagonal line, like in a 'no smoking' sign. Whats that red circle thing called? I need a HQ image of one and I'm searching on google images, but don't know what to put in the search field.

[bammbamm]

I've seen it called a 'circle slash' or a 'no symbol'

[CosmicDebris]

It is called the "banned sign"



That is what I put in Google.

[Darin]

Thanks, that's it.

[bammbamm]

Any of those works in google

[Canadian Mark]

Looks like the Ghostbusters symbol. Just add a ghost.