An Etymological Dictionary of Astronomy and Astrophysics
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فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 3 Search : aldehyde
aldehyde
  آلدهید   
âldehid (#)

Fr.: aldéhyde   

Any of a class of organic compounds containing the -CH=O group, that is a double-bonded oxygen and hydrogen bonded to the same terminal carbon atom.

From N.L. al(cohol) dehyd(rogenatum) "alcohol deprived of hydrogen."

formaldehyde (H2CO)
  فورمالدهید   
formâldehid

Fr.: formaldehyde   

A colorless gas with a pungent, suffocating odor used as an adhering component of glues in many wood products. Formaldehyde (H2CO) is obtained most commonly by the oxidation of methanol or petroleum gases such as methane, ethane, etc.
In the → interstellar medium, formaldehyde is formed the surface of → dust grains. It is then converted into gas phase by → photodesorption. H2CO was the first → organic molecule discovered in the ISM (Lewis E. Snyder et al. 1969, Phys. Rev. Lett., 22, 679).

From form(ic) acid, from Fr. formique, + → aldehyde.

glycolaldehyde
  گلیکو‌آلدهید   
glikoâldehid

Fr.: glycolaldéhyde   

The organic compound with the formula HOCH2-CHO. It is the simplest → sugar and the first intermediate product in the formose reaction that begins with formaldehyde (H2CO) and leads to the (catalyzed) formation of sugars and ultimately ribose, the backbone of RNA, under early Earth conditions. The presence of glycolaldehyde is therefore an important indication that the processes leading to biologically relevant molecules are taking place. However, the mechanism responsible for its formation in space is still unclear. Glycolaldehyde has been detected toward the → Galactic Center cloud Sgr B2, in the high-mass → hot molecular core G31.41+0.31, and more recently in the gas surrounding a young binary star with similar mass to the Sun (IRAS 16293-2422). See Jorgensen et al. 2012, astro-ph/1208.5498, and references therein.

From glycol, from glyc(erin) + (alcoh)ol + → aldehyde.