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Meaning of thallium sulfate

thal'lium sul'fate

Pronunciation: [key]
— Chem. Chem.
  1. a colorless, crystalline, water-soluble, poisonous solid, TlSO, used chiefly as an insecticide and rodenticide.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.