BB and CC cream

In general, a BB cream (aka Beauty Balm, Beauty Benefit, Blemish Base, or Blemish Balm) is typically a tinted moisturizer that also contains some level of sun protection sometimes along with other ingredients like antioxidants. 

A CC cream (aka Color Correcting) cream is pretty much the same thing but may have a lighter texture and may incorporate light diffusing particles.  

Again, the key is to realize these are marketing labels, not scientific terms.  A company can pretty much call its products anything it wants.

Here’s a nice summary of BB and CC creams written by our friend Cheryl Wischhover, formerly of Fashionista.