hematoidin vs haematoidin

hematoidin and haematoidin both are nouns.

Word	Noun	Adjective	Verb	Adverb
hematoidin	Yes	No	No	No
haematoidin	Yes	No	No	No

As nouns, hematoidin and haematoidin are synonyms defined as:

hematoidin and haematoidin: an orange-yellow pigment in the bile that forms as a product of hemoglobin; excess amounts in the blood produce the yellow appearance observed in jaundice

Other synonyms of hematoidin include bilirubin.

hematoidin (noun)	haematoidin (noun)
an orange-yellow pigment in the bile that forms as a product of hemoglobin; excess amounts in the blood produce the yellow appearance observed in jaundice	an orange-yellow pigment in the bile that forms as a product of hemoglobin; excess amounts in the blood produce the yellow appearance observed in jaundice