Middle English Dictionary Entry

arsenī̆k n.
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Entry Info

Definitions (Senses and Subsenses)

1.
(a) Med. Arsenic or some of its compounds; prob., a special form of orpiment (arsenic trisulphide) distinguished from the latter by physical properties; (b) ~ citrinum, orpiment; ~ rubeum, arsenic monosulphide, realgar; ~ sublimed, arsenic trioxide obtained by sublimation of arsenic trisulphide, white arsenic; poudre (puluer) of ~, powdered arsenic trioxide.
2.
Alch. Arsenic compounds used in multiplying and transmuting; prob., orpiment; ~ poudre, ?powdered orpiment, ?powdered white arsenic.