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ch    
n. 章,(chapter)

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Methenyl \Meth"e*nyl\, n. [Methene -yl.] (Chem.)
The hypothetical hydrocarbon radical {CH}, regarded as an
essential residue of certain organic compounds.
[1913 Webster]


Tetrazine \Tet*raz"ine\, n. Also -in \-in\ . [Tetrazo- -ine.]
(Chem.)
A hypothetical compound, {C2H2N4} which may be regarded as
benzene with four {CH} groups replaced by nitrogen atoms;
also, any of various derivatives of the same. There are three
isomeric varieties.
[Webster 1913 Suppl.]


Tetrazole \Tet*raz"ole\, n. [Tetrazo- -ole.] (Org. Chem.)
A crystalline acid substance, {CH2N4}, which may be regarded
as pyrrol in which nitrogen atoms replace three {CH} groups;
also, any of various derivatives of the same.
[Webster 1913 Suppl.]


Azole \Az"ole\, n. [From {Azote}.] (Org. Chem.)
Any of a large class of compounds characterized by a
five-membered ring which contains an atom of nitrogen and at
least one other noncarbon atom (nitrogen, oxygen, sulphur).
The prefixes furo-, thio, and pyrro- are used to distinguish
three subclasses of azoles, which may be regarded as derived
respectively from furfuran, thiophene, and pyrrol by
replacement of the {CH} group by nitrogen; as, furo-monazole.
Names exactly analogous to those for the azines are also
used; as, oxazole, diazole, etc.
[Webster 1913 Suppl.]


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  • Chess. com - Play Chess Online - Free Games
    Play chess online for free on Chess com with over 200 million members from around the world Have fun playing with friends or challenging the computer!
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    ch is the country code top-level domain (ccTLD) for Switzerland in the Domain Name System of the Internet
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    As an abbreviation, “CH” became the standard country code, a neutral designation across Switzerland’s linguistic and cultural diversity Today, “CH” appears on Swiss domains ( ch), license plates, coins, and stamps
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    Ch definition: chain; chains See examples of CH used in a sentence
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    Looking for online definition of CH or what CH stands for? CH is listed in the World's most authoritative dictionary of abbreviations and acronyms
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    The international registration code and currency abbreviation for Switzerland, CHF, also utilize these letters So, why is Switzerland identified as CH? Contrary to popular misconceptions about cheese or chocolate, CH stands for Confoederatio Helvetica, the Latin name for Switzerland
  • ch - Wiktionary, the free dictionary
    The abbreviation ch is used for all types of (metric) horsepower except tax horsepower, which uses the initialisms cv or CV ch (upper case Ch) A letter of the practical Hadza alphabet ch (lower case, upper case Ch) A digraph used in several Hungarian words, as well as in some surnames, given names, and geographical names
  • CH - Definition by AcronymFinder
    106 definitions of CH Meaning of CH What does CH stand for? CH abbreviation Define CH at AcronymFinder com
  • Switzerland - Wikipedia
    Switzerland is a federal republic composed of 26 cantons, with federal authorities based in Bern [a][3][2] It has four main linguistic and cultural regions: German, French, Italian and Romansh
  • Why is CH the Country Code for Switzerland? - Alpenwild
    CH stands for Confœderatio Helvetica or Helvetic Confederation in English Learn more about the origins of CH and Switzerland country code CH





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