aldehyde
- n any of a class of highly reactive chemical compounds; used in making resins and dyes and organic acids
- The thing that did the trick was the active principle of wintergreen oil, heptyl aldehyde, a fragrant, colorless liquid.
- They heard about hydrazine and dithiooximide and triacetyl-aldehyde-L-erythrose.
- Tanks nine feet in diameter have been molded from Haveg, a phenol-aldehyde.