I don't wanna sound stupid or slow but what's a rainbow baby?

it a baby that you concieved after a miscarriage I believe that's what I've heard

It's a baby that's conceived after a miscarriage

I asked the same thing , but it means a baby after a miscarriage

oh OK, that's what I was thinking from putting clues together but wasn't sure.. I guess this is my rainbow baby also seeing as I just had a miscarriage in February and got pregnant with this one after. thanks ladies

A baby conceived after the loss of a baby from miscarriage, sids, etc.