Chinese edit

three oxygen
 
to make into; to change into; ‑ization
to make into; to change into; ‑ization; to ... ‑ize; to transform
two arsenic
trad. (三氧化二砷)
simp. #(三氧化二砷)
 
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Noun edit

三氧化二砷

  1. (inorganic chemistry) arsenic trioxide

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