-ˌintəˈrəptəs noun
also coitus re·ser·va·tus -ˌrezərˈvād.əs
( plural coitus interrup·ti -ˌtī, -(ˌ)tē ; also coitus reserva·ti -d.ˌī, -d.(ˌ)ē)
Etymology: New Latin, interrupted coitus
: coitus which is purposely interrupted in order to prevent ejaculation of semen into the vagina