According to the poker dictionary a cold call is calling a raise without having previously bet.

Is this any different than the smooth call?

Is a cold call a type of slow play? If you have a great hand and only call a bet or raise would this likely disguise the strength of your hand.

Or could you use a cold call on a drawing hand if the pot odds are good.

Basically I'm wondering how a cold call works and where it might be useful.

Thanks guys.