H-CHO
Aldehyde Al"de*hyde ([a^]l"d[-e]*h[imac]d), n. [Abbrev. fr. alcohol dehydrogenatum, alcohol deprived of its hydrogen.] 1. (Chem.) A colorless, mobile, and very volatile liquid obtained from alcohol by certain processes of oxidation. [1913 Webster]

2. (Chem.) Any compound having the group {-CHO}. Methyl aldehyde, the simplest aldehyde, is more commonly called formaldehyde, {H-CHO}, and acetic aldehyde is now more commonly called {acetaldehyde}. The higher aldehydes may be solids. A {reducing sugar} typically contains the aldehyde group. [PJC]

Note: The aldehydes are intermediate between the alcohols and acids, and differ from the alcohols in having two less hydrogen atoms in the molecule, as common aldehyde (called also {acetaldehyde}, {acetic aldehyde} or {ethyl aldehyde}), {C2H4O}; methyl aldehyde (called also {formaldehyde}), {CH2O}. [1913 Webster +PJC]

{Aldehyde ammonia} (Chem.), a compound formed by the union of aldehyde with ammonia. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Cho Hunhyun — Full name Cho Hunhyun Nickname The God of War[1] Hangul …   Wikipedia

  • Cho Yangho — (Korean: 조양호, Hanja: 趙亮鎬, RR: Jo Yang ho, M R: Cho Yangho; sometimes written Y. H. Cho[1]) is the chairman and chief executive officer of Korean Air, chairman of the Hanjin Group, and a founding member of SkyTeam alliance. Contents 1 Introduction …   Wikipedia

  • Cho Yangho — Nacimiento  Corea del Sur …   Wikipedia Español

  • -CHO — Aldehyde Al de*hyde ([a^]l d[ e]*h[imac]d), n. [Abbrev. fr. alcohol dehydrogenatum, alcohol deprived of its hydrogen.] 1. (Chem.) A colorless, mobile, and very volatile liquid obtained from alcohol by certain processes of oxidation. [1913… …   The Collaborative International Dictionary of English

  • Cho — or CHO can refer to several things: Cho can refer to the following people, real or fictional: Contents 1 Name 2 People 3 Acronyms 4 Other Name …   Wikipedia

  • Cho Oyu — The south side of Cho Oyu from Gokyo. Elevation 8,201 m (26,906 ft)  …   Wikipedia

  • Cho Ro people — Cho Ro Total population 22,567 (1999 est.) Regions with significant populations Vietnam : Đồng Nai, Bình Dương, Bình Phước, Bình Thuận, Lâm Đồng, Bà Rịa Vũng Tàu Languages Vietnamese, others …   Wikipedia

  • Cho Lach District — Chợ Lách   District   Location in Ben Tre Province Country …   Wikipedia

  • Cho — Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. CHO, sigle composé des trois lettres C, H et O, peut faire référence à : Charlottesville, en Virginie aux États Unis, selon la liste des codes AITA… …   Wikipédia en Français

  • H. Ramakrishnan — H Ramakrishnan was born on Christmas Day 1941, in Trivandrum, Kerala, India to R Harihara Iyer and Vijayalakshmi. Has over 40 years of experience as a journalist. He has worked in State run media Doordarshan, ((All India Radio)), Press… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”