induction  
noun uk/ɪnˈdʌk.ʃən/ us/ɪnˈdʌk.ʃən/
  (INTRODUCTION)      
  [ C or U ]就任;入门;接纳会员;就职仪式 
an occasion when someone is formally introduced into a new job or organization, especially through a special ceremony
  Their induction into the church took place in June. 他们的入教仪式是在6月份举行的。 
 Her induction as councillor took place in the town hall. 她在市政厅就任市政会委员。 
 an induction course/program/ceremony 入门课程/入门指导计划/就职仪式 
   (CAUSING)      
  [ U ] formal诱导; 引发 
the act of causing an event or process to happen
  the induction of labour 催生 
   (THINKING)     
  [ U ] social sciences specialized归纳;归纳法 
the process of discovering a general principle from a set of facts
   (ELECTRICITY)      
 [ U ] physics specialized(电磁)感应 
an occasion when electrical power goes from one object to another without the objects touching
  an induction coil/motor 感应线圈/发动机