Substituent

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Substituent \Sub*stit"u*ent\, n. [L. substituens, p. pr. See
     {Substitute}.] (Chem.)
     Any atom, group, or radical substituted for another, or
     entering a molecule in place of some other part which is
     removed.
     [1913 Webster]