3 of 4 Fixed comma splice. Clarified clumsy wording. "Appetizers" and "Hors d'oeuvres" are both acceptable terms.

Finger food comes to mind. You were close with your thumb!

They are also conventionally called appetizers or hors d'oeuvres, even though according to their strict definitions, they should precede proper meals. At cocktail parties, an actual meal does not normally follow.