cyclosporin in British English
 (ˌsaɪkləʊˈspɔːrɪn) or cyclosporine (ˌsaɪkləˈspɔːriːn, ˌsaɪkləˈspɔːrɪn, ˌsɪkləˈspɔːriːn, ˌsɪkləˈspɔːrɪn)
noun  a variant spelling of ciclosporin
  ciclosporin in British English
 or cyclosporin (ˌsaɪkləʊˈspɔːrɪn)
nouna drug extracted from a fungus and used after organ transplantation to suppress the body's immune mechanisms, and so prevent rejection of an organ