Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A crystalline organophosphorus compound, C8H20O7P2, that inhibits the action of acetylcholinesterase and is used as an insecticide.

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[t(etra)– + e(thyl) + p(yro)– + p(hosphate).]

Examples

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