This is the 9369th most frequent French word.
diabétique
Diabétique: Relating to or having diabetes.
In this sentence, 'diabétique' is used as an adjective describing someone's medical condition.
Cette personne est diabétique depuis plusieurs années.
This person has been diabetic for several years.
Here, 'diabétique' again serves as an adjective identifying a characteristic related to health.
Mon oncle suit un régime stricte parce qu'il est diabétique.
My uncle follows a strict diet because he is diabetic.
In this instance, 'diabétiques' appears as a plural noun referring to people diagnosed with diabetes.