celibacy       
noun [ U ] uk/ˈsel.ə.bə.si/ us/ˈsel.ə.bə.si/
 (尤指因宗教信仰)禁欲
the state of not having sex, especially because you have made a religious promise not to
  Celibacy is not exclusive to Catholic priests. 禁欲并不仅限于天主教牧师。 
 She chose celibacy after a pregnancy scare at 16. 她16岁时发生过一次怀孕恐慌,之后就选择了禁欲。 
 See: celibate
 - More examples
 - He said that celibacy is fine, and sometimes even restful.
 - The church resists any effort to change policies regarding birth control, priestly celibacy, or the ordination of women.
 - the rule of clerical celibacy