oxyhaemoglobin vs oxyhemoglobin

oxyhaemoglobin and oxyhemoglobin both are nouns.

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

As nouns, oxyhaemoglobin and oxyhemoglobin are synonyms defined as:

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

oxyhaemoglobin (noun)	oxyhemoglobin (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