Final answer:
The suffix in the term 'cardiomegaly' is 'megaly,' indicating enlargement of the heart, and is associated with conditions like hypertrophic cardiomyopathy, a disease involving thickening of the heart muscle.
Step-by-step explanation:
The term 'cardiomegaly' refers to an enlargement of the heart. The suffix in this word is 'megaly,' which indicates an enlargement or overgrowth of an organ. When this term is applied to the heart, as in 'cardiomegaly,' it usually refers to a pathological condition where the size of the heart is larger than normal. This can be associated with conditions like hypertrophic cardiomyopathy, which is a type of heart disease characterized by the thickening of the heart muscle, often without an identifiable cause.