NCIt definition : A thick, protein-rich substance secreted by the breasts during the second half of
pregnancy and for a few days after birth before the breast milk comes in. It contains
antibodies which serve to give the baby protection from disease and also has a laxative
effect on the colon which helps to expel the plug of meconium and facilitate the establishment
of normal bowel movements.;
Alternative definition : CDISC: A thick, protein-rich substance secreted by the breasts during the second half
of pregnancy and for a few days after birth before the breast milk comes in.;