Lexic.us

Definition of Formaldehyde

1. Noun. A colorless poisonous gas; made by the oxidation of methanol.

Definition of Formaldehyde

1. n. A colorless, volatile liquid, H₂CO, resembling acetic or ethyl aldehyde, and chemically intermediate between methyl alcohol and formic acid.

Definition of Formaldehyde

1. Noun. (organic compound) The simplest aldehyde, H-CHO, a colourless gas having many industrial applications; it dissolves in water to give formalin. ¹

¹ Source: wiktionary.com

Definition of Formaldehyde

1. [n -S]

Medical Definition of Formaldehyde

1. Commonly used fixative and antibacterial agent. As a fixative it is cheap and tends to cause less denaturation of proteins than does glutaraldehyde, particularly if used in a well buffered solution (buffered formalin, formal saline). Old formaldehyde solutions usually contain cross linking contaminants and it is therefore often preferable to used a formaldehyde generating agent such as paraformaldehyde. Formalin fumes, particularly in conjunction with hydrochloric acid vapour, are potently carcinogenic. (20 Jun 2000)

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Lexicographical Neighbors of Formaldehyde

Literary usage of Formaldehyde

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

1. Journal of the American Chemical Society by American Chemical Society (1900)
"A COMPARISON OF SOME formaldehyde TESTS.1 BY BM ... In some instances the reaction given for formaldehyde proved to be true for other aldehydes also and ..."

2. A Systematic Handbook of Volumetric Analysis: Or, The Quantitative by Francis Sutton (1904)
"A number of experiments were carried out on the estimation of formaldehyde by G. Romijn (Z. a. C. 1897, 18-24). The methods of Legier, Brochet, ..."

3. The Chemistry of Synthetic Drugs by Percy May (1911)
"formaldehyde.—The strong antiseptic properties of formaldehyde have only recently been ... formaldehyde has long been used for the disinfection of rooms, ..."

4. The Journal of Experimental Medicine by Rockefeller University, Rockefeller Institute, Rockefeller Institute for Medical Research (1905)
"Although the germicidal effects of formaldehyde and formalin have been in the ... Wherever the term formaldehyde is used in this article, the gas formic ..."

5. Phytopathology by American Phytopathological Society (1917)
"THE SPRAY METHOD OF APPLYING CONCENTRATED formaldehyde SOLUTION IN THE CONTROL OF OAT SMUT RJ HASKELL The treatment of oat seed for the control of the smut ..."

6. Bulletin of the University of Wisconsin by University of Wisconsin (1908)
"In using this solution, formaldehyde or formalin, to disinfect a room it is ... Pour formaldehyde over the crystals in the proportion of one pint or pound ..."

7. A Text-book of Organic Chemistry by Arnold Frederik. Holleman (1920)
"formaldehyde affords another striking example of this phenomenon of ... The formaldehyde produced is absorbed by water, in which it dissolves readily. ..."

8. A Dictionary of Applied Chemistry by Thomas Edward Thorpe (1912)
"formaldehyde is capable of reacting with practically any class oi organic, ... formaldehyde is also used as a reducing agent in the recovery of silver and ..."

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