Meaning of “diabetes” - Learner’s Dictionary

diabetes

noun [ U ] uk us /ˌdaɪəˈbiːtiːz/

a serious medical condition in which your body cannot control the level of sugar in your blood

diabetic uk us /ˌdaɪəˈbetɪk/ adjective
diabetic uk us /ˌdaɪəˈbetɪk/ noun [ C ]

someone who has diabetes

(Definition of “diabetes” from the Cambridge Learner’s Dictionary © Cambridge University Press)