Meaning of “diabetes” - Learner’s Dictionary

diabetes

noun [ U ] us uk /ˌdaɪəˈbiːtiːz/

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

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

someone who has diabetes

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