cholesterol · noun U /kəˈles.tər.ɒl/Full view
cholesterol
C1 a type of fat in your body that can cause heart disease if you have too much
Dictionary example:

The doctor said I had high cholesterol.

Learner example:

Hong Kong people have become fatter and fatter due to the adoption of Western food which is rich in fat and cholesterol. (Certificate in Advanced English; C1; Chinese)

Cambridge University Press