ch

6 definitions found

ch - Collaborative International Dictionary of English v.0.48 :

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

  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.]

  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.]

  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.]

ch - Free On-line Dictionary of Computing (26 May 2007) :

  Ch
  
     <language> An interpreted programming language sold by Soft Integration
      and marketed for scripting, shell programming
     and graph plotting, it is a superset of C++.  Ch is also the
     name of Soft Integration's interpreter for the language.
     Currently the Ch interpreter is available for Windows,
     Solaris, HP-UX, Linux and Mac platforms.
  
     Soft Integration (http://softintegration.com/).
  
     (2003-08-15)
  

  ch
  
     <networking> The country code for Switzerland.
  
     (1999-01-27)