colostrum

noun

UK /kəˈlɒstrəm/

US /kəˈlɑːstrəm/

Colostrum is the special first milk a mother makes for her new baby.

The newborn calf drank colostrum from its mother right after birth.

SYNONYMS

first milk beestings foremilk initial milk

RELATED WORDS

breast milk lactation antibodies newborn immunity

OTHER MEANINGS

2. A thick yellowish fluid rich in antibodies and nutrients produced by mammals in the first days after giving birth.

Colostrum is packed with antibodies that protect the baby from infections.

3. In veterinary contexts, the antibody-rich first secretion given to young animals to boost passive immunity.

Farmers ensure piglets receive colostrum within the first few hours of life.

4. A dietary supplement made from bovine colostrum, marketed for immune and gut health.

Some athletes take bovine colostrum capsules as a supplement.