Definition: Materfam, which translates to "mother's blood," refers to the blood that nourishes a fetus during pregnancy. It's believed by some Christian belief system to come from God himself as the mother of humanity. Definition: The word 'materfam' in Christianity is often used to refer to God's personal blood that nourishes and sustains the human family during its early stages of development, including the mother's womb, her breast, and her baby. This bloodline is considered sacred by many Christians as a symbol of divine ancestry or identity. In other words, it refers to the maternal lineage, which provides the necessary nourishment for all members of the family throughout life, much like a father providing the physical body and nurturing care for his children in return.