Bronchial asthma and Respiratory disease

Bronchial asthma noun - Respiratory disorder characterized by wheezing; usually of allergic origin.

Respiratory disease and bronchial asthma are semantically related. In some cases you can use "Respiratory disease" instead a noun phrase "Bronchial asthma".

Respiratory disease noun - A disease affecting the respiratory system.

Bronchial asthma and respiratory disease are semantically related. Sometimes you can replace phrase "Bronchial asthma" with "Respiratory disease", this phrases are similar.