Definition of Aldehyde

1. Noun. Any of a class of highly reactive chemical compounds; used in making resins and dyes and organic acids.

Definition of Aldehyde

1. n. A colorless, mobile, and very volatile liquid obtained from alcohol by certain processes of oxidation.

Definition of Aldehyde

1. Noun. (organic chemistry) Any of a large class of reactive organic compounds (''R''·CHO) having a carbonyl functional group attached to one hydrocarbon radical and a hydrogen atom. ¹

¹ Source:

Definition of Aldehyde

1. a type of chemical compound [n -S]

Medical Definition of Aldehyde

1. A carbon atom double-bonded to an oxygen, single-bonded to a hydrogen, and single-bonded to another chemical group (such as methane, benzene, another hydrogen, anything). The carbon oxygen double bond part is known as a carbonyl group (C=O). An example is acetaldehyde, which is a carbonyl group single-bonded to a hydrogen and single-bonded to a methane (a methyl group: CH3). (09 Oct 1997)

Aldehyde Pictures

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Lexicographical Neighbors of Aldehyde

aldaric acid
aldaric acids
aldehyde (current term)
aldehyde-ketone transferases
aldehyde DPN transhydrogenase
aldehyde TPN transhydrogenase
aldehyde base
aldehyde decarbonylase
aldehyde dehydrogenase
aldehyde dehydrogenase (NAD(P)+)
aldehyde dehydrogenase (NAD+)
aldehyde dehydrogenase (acylating)
aldehyde ferredoxin oxidoreductase
aldehyde fuchsin
aldehyde group

Literary usage of Aldehyde

Below you will find example usage of this term as found in modern and/or classical literature:

1. A Manual of Elementary Chemistry, Theoretical and Practical by George Fownes (1869)
"Benzoic aldehyde, or Bitter-almond oil Toluic aldehyde ... Cinnamic aldehyde C,H,0. All these aldehydes contain two atoms of hydrogen less than the ..."

2. International Catalogue of Scientific Literature by Royal Society (Great Britain). (1908)
"London, J. Chera. S<x-., 87, 1905, (805-818). aldehyde C»H,»-20, ... aldehyde C3H,0. Methylglyoxal CH3.CO.CH:O and tho acetal CH3.CO.CH(OF.t\ Harries, ..."

3. A Dictionary of Chemistry and the Allied Branches of Other Sciences by Henry Watts (1870)
"Pure aldehyde sealed np in a tube changes in the course of a few weeks into a ... Pure aldehyde mixed with about, half ita bulk of water and a trace of ..."

4. The Chemical News and Journal of Industrial Science (1901)
"The dilute aldehyde solution was gently boiled for two hours to drive over the ... The removal of acetic aldehyde by the process was so complete that in the ..."

5. A Dictionary of Applied Chemistry by Thomas Edward Thorpe (1921)
"In addition to acetic acid, aldehyde (acetic aldehyde) is produced, which is intermediate in composition between alcohol and acetic acid. ..."

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