- a yellowish liquid, especially rich in immune factors, secreted by the mammary gland of female mammals a few days before and after the birth of their young.
Origin of colostrum
Examples from the Web for colostrum
Historical Examples of colostrum
Colostrum is rich in the very food that the baby calf needs.
Colostrum, ko-los′trum, n. the first milk of a mammal after parturition.
After the calf is a few days old, colostrum changes to what is commonly known as milk.
By nursing the colostrum out of the breasts, it will favor and hasten the secretion of milk.The Eugenic Marriage, Volume I. (of IV.)
W. Grant Hague, M.D.
- the thin milky secretion from the nipples that precedes and follows true lactation. It consists largely of serum and white blood cells
Word Origin for colostrum
1570s, from Latin colostrum "first milk from an animal," of unknown origin.
- The first milk secreted at the time of parturition, differing from the milk secreted later by containing more lactalbumin and lactoprotein, and also being rich in antibodies that confer passive immunity to the newborn.foremilk