a substance that is stored under the skin of people and animals, that helps to keep them warm:
Rolls of fat bulged over his collar.
I didn't like the meat - there was too much fat on it.
2 [uncountable and countable]DFN
an oily substance contained in certain foods:
Cream has a high fat content.
high/low in fat
This cheese is relatively low in fat.
You should think about reducing your fat intake (=the amount of fat you eat).
high-fat/low-fat➔ saturated fat
a low-fat diet
3 [uncountable and countable]DFC
an oily substance taken from animals or plants and used in cooking:
Place the chicken in the hot fat.
used to say that there will be trouble because of something that has happened
to get enough money to live comfortably without doing much work
to start to become fat, especially because you are getting older or do not do much exercise