1. aldehyde

noun. any of a class of highly reactive chemical compounds; used in making resins and dyes and organic acids.


  • ethanal trimer
  • acetaldehyde
  • propionaldehyde
  • glyceric aldehyde
  • ethanal
  • paraldehyde
  • propenal
  • propanal
  • organic compound
  • formaldehyde
  • furfuraldehyde
  • furfural
  • acrolein
  • methanal

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2. aldehyde-alcohol

noun. an oily colorless liquid obtained by the condensation of two molecules of acetaldehyde; contains an alcohol group (-OH) and an aldehyde group (-CHO).


  • acetaldol
  • aldol

Sentences with aldehyde

1. Adjective
The reason for this is that the straight chain has an alcohol group at one end and an aldehyde group at the other.

2. Noun, singular or mass
An aldehyde has a hydrogen to lose but it is connected to a carbon molecule and carbon never likes to drop its hydrogens.