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Haematin
the GNU version of the Collaborative International Dictionary of English
noun.
Same as
hematin
.
Wiktionary, Creative Commons Attribution/Share-Alike License
noun.
Alternative spelling of
hematin
.
Word Usage
"But this substance, as well as the so-called haematin used by me, ought perhaps to have been classed with indigestible substances."
suggests
haematite
variant
hematin