TEPP

noun

ˌtē-(ˌ)ē-(ˌ)pē-ˈpē

: a hygroscopic corrosive liquid organophosphate C₈H₂₀O₇P₂ that is a powerful anticholinesterase and is used especially as an insecticide

Word History

Etymology

tetra- + ethyl + pyrophosphate

First Known Use

1948, in the meaning defined above

Time Traveler

The first known use of TEPP was in 1948

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tepoy

TEPP

teppanyaki

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Style

“TEPP.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/TEPP. Accessed 4 Nov. 2025.

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Medical Definition

TEPP

noun

ˌtē-ˌē-ˌpē-ˈpē

: a mobile hygroscopic corrosive liquid organophosphate C₈H₂₀O₇P₂ that is a powerful anticholinesterase and is used as an insecticide and parasympathomimetic agent

called also tetraethyl pyrophosphate

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TEPP

noun

Word History

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