CO
Ketone Ke"tone (k[=e]"t[=o]n), n. [Cf. {Acetone}.] (Chem.) One of a large class of organic substances resembling the aldehydes, obtained by the distillation of certain salts of organic acids and consisting of carbonyl ({CO}) united with two hydrocarbon radicals. In general the ketones are colorless volatile liquids having a pungent ethereal odor. [1913 Webster]

Note: The ketones are named by adding the suffix-one to the stems of the organic acids from which they are respectively derived; thus, acetic acid gives acetone; butyric acid, butyrone, etc. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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  • .co — Creado en 1991 Tipo de TLD Dominio de nivel superior geográfico Estado Activo Restricciones de registro Cualquier persona o entidad puede registrar un nombre de dominio .CO. Hay restricciones para ciertos tipos de dominios de tercer …   Wikipedia Español

  • .co — Тип домена национальный домен верхнего уровня Статус действующий DNSSEC Есть Веб сайт [1] Whois сервер …   Википедия

  • Co — Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. {{{image}}}   Sigles d une seule lettre > Sigles de deux lettres   Sigles de trois lettres …   Wikipédia en Français

  • .co — est le domaine national de premier niveau (country code top level domain : ccTLD) réservé à la Colombie. .co est aussi fréquemment utilisé comme domaine de second niveau à l intérieur d un domaine national de premier niveau. Les noms de… …   Wikipédia en Français

  • Co — n. the chemical formula for {cobalt}, a ferromagnetic metal of atomic number 27. Syn: cobalt, atomic number 27. [WordNet 1.5] …   The Collaborative International Dictionary of English

  • Co- — (k[ o] ). A form of the prefix com , signifying with, together, in conjunction, joint. It is used before vowels and some consonants. See {Com }. [1913 Webster] …   The Collaborative International Dictionary of English

  • — is a digraph of the Latin alphabet. It is used as a letter of the Seri alphabet, where it represents a labialized velar stop (IPA: IPA|/kʷ/). It is placed between C and E in alphabetical order …   Wikipedia

  • .co — Infobox Top level domain name=.co background=#CCF introduced=1991 type=Country code top level domain status=Active registry=Los Andes University sponsor=None intendeduse=Entities connected with flag|Colombia actualuse=Used in Colombia; talk of… …   Wikipedia

  • CO — Contents 1 People and official titles 2 Other 3 See also CO, Co, co, .co, c/o …   Wikipedia

  • Co$ — Das Symbol Scientologys Das internationale Hauptquartier der Scientology Kirche in Los Angeles …   Deutsch Wikipedia

  • CO — Die Abkürzung CO steht für: Central Office, eine Vermittlungsstelle oder ein PoP in der Telekommunikation Chief Officer, eine Führungskraft im englischsprachigen Raum, etwa einen Vorstand Chrysler CO, ein PKW Modell aus dem Jahr 1933 Coburg… …   Deutsch Wikipedia

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