the period from the onset of labour to the birth of a child, the being in child-bed; child-birth, delivery, accouchement, delivery - the expulsion of the fetus at birth with the placenta and membrances of the mother

methods or physical structures designed to prevent the dispersion of radioactive substances. Although approximately synonymous with confinement, containment is normally used to refer to methods or structures that prevent radioactive substances being dispersed in the environment if confinement fails.