0 a cooked smoked sausage that is sliced and eaten cold
1 a cooked, smoked sausage (= mixed meat in a tube shape) that is sliced and eaten cold:
He would buy bologna and potato salad on Sunday nights, and perhaps they would slice up a raw onion.
Ruth accepted a piece of the bologna and the crackers gravely.
She baited her hook with a piece of the bologna and caught a big, struggling carp.
The bologna sausage was shared in like fashion, but I never heard of any one who got a taste of the pies.