countable/uncountable the natural feeling of wanting to eata child with a healthy appetite
The symptoms include fever and loss of appetite.
All that fresh air and exercise has given me an appetite.
spoil/ruin your appetite: Don’t have any more chocolate – it’ll spoil your appetite (=make you want to eat less at the next meal).
work up an appetite (=do something that makes you hungry): Ella had worked up a big appetite in the gym.