semiconductor semiconductor /ˌsɛmɪkənˈdʌktɝ, ˌsɛmaɪkənˈdʌktɝ/

noun

1. A conductor made with semiconducting material  ( semiconductor , semiconductor device , semiconductor unit )
   a conductor made with semiconducting material
   
   
2. A substance as germanium or silicon whose electrical conductivity is intermediate between that of a metal and an insulator; its conductivity increases with temperature and in the presence of impurities  ( semiconducting material , semiconductor )
   a substance as germanium or silicon whose electrical conductivity is intermediate between that of a metal and an insulator; its conductivity increases with temperature and in the presence of impurities