Fallot's syndrome vs pulmonary stenosis

Fallot's syndrome and pulmonary stenosis both are nouns.

Word	Noun	Adjective	Verb	Adverb
Fallot's syndrome	Yes	No	No	No
pulmonary stenosis	Yes	No	No	No

Fallot's syndrome (noun)	pulmonary stenosis (noun)
a congenital heart defect producing cyanosis; characterized by four symptoms: pulmonary stenosis and ventricular septal defect and malposition of the aorta over both ventricles and hypertrophy of the right ventricle	abnormal narrowing of the opening into the pulmonary artery from the right ventricle