dimorphite

noun

di·​mor·​phite

-fīt

plural -s

: a mineral As₄S₃ consisting of arsenic sulfide originally thought to be one of two dimorphous substances

Word History

Etymology

obsolete English dimorphine dimorphite (from Italian dimorfina, from dimorf- —from Greek dimorphos —+ -ina -ine) + English -ite

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