It is not a drink or an appetizer, but a strictly medicinal preparation.
"No, that would only serve as an appetizer," answered David.
He opened it with loving care, and the four partners had an appetizer.
This is considered an appetizer for the proper meal, which no stranger must forget.
The "gustus," or appetizer, was also variously known as the "gustatio."
The catsup-laden soup had proved to be little more than an appetizer.
Her education has been an appetizer; now she is invited to partake of the banquet.
Sardines on toast will make a good first course or appetizer for this dinner.
We're just taking a little walk, before breakfast, for an appetizer.
In other words an appetizer is often required to induce us to eat.