She has an 'appetite for' adventure. [=she likes adventure; she likes to do adventurous things]
That movie made me 'lose my appetite'. [=I no longer wanted to eat after seeing that movie]
Delicious smells from the kitchen 'whetted our appetites'. [=made us hungry]
(..) ...but I still see things that are not here. I just choose not to acknowledge them. Like a diet of the mind, I choose not to indulge certain appetites. Like my appetite for patterns. Perhaps my appetite to imagine and to dream. Professor Nash. It's good to have you here, John. Thank you. (..)2001 A Beautiful Mind