There is no need to tell that word with long sentences; shortly for webcam chat it means "random chat"; so on webcam you can just meet a stranger online.
This user can be from any country and any age; also any sex; male or female etc.
So it's just random; that's why roulette chat.
Roulette Chat Sites?
These sites are like omegle, Chatroulette, Flipchat, Camzap, Chatraw, Stickam... Free random chat sites; there are so many sites like we listed above.
What About Searching?
On any sites for example on chatroulette.com premium account you can search people from any country or age/sex etc.
So that is a proper chatting because you search about what you want; but still you don't know how a user will occur on you.
So it's a Roueltte chat too.
See more sites in our blog to chat online ;)