from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The aliphatic aldehyde, having five carbon atoms, related to valeric acid

from The Century Dictionary and Cyclopedia

  • n. A mobile liquid having an irritating odor (C4H9.CHO). It is produced by the oxidation of amyl alcohol. Formerly called valeral. An isomeric valeraldehyde with a fruit-like odor is also known.


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