Definition of "lactogen" []

• Any agent that enhances milk production (noun)

WordNet. Princeton University. 2010.

• "During the second trimester and as early as the sixteenth week of pregnancy, the hormone prolactin stimulates the production of colostrum (the first milk); the hormone human placental lactogen (HPL) stimulates your breasts to secrete colostrum."
• "The fetus also secretes human placental lactogen (hPL), a hormone that blocks the effects of insulin and thereby increases the amount of glucose in the mother's blood."
• "When two pregnancy hormones, prolactin and placental lactogen, trigger the gene for tryptophan hydroxylase 1 (Tph1), the enzyme for making serotonin, the amount of serotonin in the beta cells increases 1,000-fold."