Meanwhile, if you're heading to a destination or an out-of-town wedding, it's probably OK to spend less on the gift, said Hill. But you should still give something; Hill noted that guests can't simply say that their attendance is gift enough.
Cell culture. Cell culture, the maintenance and growth of the cells of multicellular organisms outside the body in specially designed containers and under precise conditions of temperature, humidity, nutrition, and freedom from contamination.
Chemically defined medium. A chemically defined medium is a growth medium suitable for the in vitro cell culture of human or animal cells in which all of the chemical components are known. Standard cell culture media are commonly supplemented with animal serum (such as fetal bovine serum, FBS) as a source of nutrients and other ill-defined factors.