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haematinum

noun
hae·​mat·​i·​num | \hēˈmatənəm\
variants: or less commonly haematinon \-​təˌnän \
plural -s

Definition of haematinum 

: a hard opaque red glass made by the ancients also : a modern imitation of this

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History and Etymology for haematinum

New Latin, from neuter of Latin haematinus blood-colored, from Greek haimatinos bloody, from haimat- hemat- + -inos -ine

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