phosphamidon

noun

phos·​pham·​i·​don

fäsˈfaməˌdän

plural -s

: a contact and systemic organophosphorus insecticide and miticide C₁₀H₁₉ClNO₅P

Word History

Etymology

phosph- + amid- + -on entry 1

First Known Use

1960, in the meaning defined above

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now