Congestive heart failure and Heart disease

Congestive heart failure noun - Inability to pump enough blood to avoid congestion in the tissues.

Heart disease and congestive heart failure are semantically related In some cases you can replace phrase "Heart disease" with "Congestive heart failure", this phrases are similar.

Heart disease noun - A disease of the heart.

Congestive heart failure and heart disease are semantically related in disease of the heart topic. You can use "Congestive heart failure" instead a noun phrase "Heart disease".