hemoptysis vs haemoptysis

hemoptysis and haemoptysis both are nouns.

Word	Noun	Adjective	Verb	Adverb
hemoptysis	Yes	No	No	No
haemoptysis	Yes	No	No	No

As nouns, hemoptysis and haemoptysis are synonyms defined as:

hemoptysis and haemoptysis: coughing up blood from the respiratory tract; usually indicates a severe infection of the bronchi or lungs

hemoptysis (noun)	haemoptysis (noun)
coughing up blood from the respiratory tract; usually indicates a severe infection of the bronchi or lungs	coughing up blood from the respiratory tract; usually indicates a severe infection of the bronchi or lungs