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demeton

[dem-i-ton]
noun Chemistry.
  1. either of two pale-yellow, highly toxic chemicals, C6H15O3PS2 or C6H15O4PS2, used as systemic insecticides, lethal to insects feeding on the treated plant or animal.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018