decompound

US: (v. dē′kəm pound′; adj. dē kom′pound, dē′kom pound′, -kəm-)

WordReference Random House Unabridged Dictionary of American English © 2026

de•com•pound  (v. dē′kəm pound′;adj. dē kom′pound, dē′kom pound′, -kəm-), v.t. 

1. to decompose.
2. [Obs.] to compound a second or further time.

adj. 

3. Botany divided into compound divisions.
4. composed of compounds the parts of which are also compounds, as a bipinnate leaf.

• de- + compound¹ 1605–15