oxyhemoglobin vs oxyhaemoglobin

oxyhemoglobin and oxyhaemoglobin both are nouns.

Word	Noun	Adjective	Verb	Adverb
oxyhemoglobin	Yes	No	No	No
oxyhaemoglobin	Yes	No	No	No

As nouns, oxyhemoglobin and oxyhaemoglobin are synonyms defined as:

oxyhemoglobin and oxyhaemoglobin: the bright red hemoglobin that is a combination of hemoglobin and oxygen from the lungs

oxyhemoglobin (noun)	oxyhaemoglobin (noun)
the bright red hemoglobin that is a combination of hemoglobin and oxygen from the lungs	the bright red hemoglobin that is a combination of hemoglobin and oxygen from the lungs