con ‧ tra ‧ cep ‧ tion /ˌkɒntrəˈsepʃ ə n $ ˌkɑːn-/ BrE AmE noun [uncountable]
[ Date: 1800-1900 ; Origin: contra- + conception ]
the practice of preventing a woman from becoming ↑ pregnant when she has sex, or the methods for doing this SYN birth control :
The pill is a popular method of contraception.