Which is the best definition of miscarriage?

Answer 1

A miscarriage is a spontaneous expulsion of a human fetus

If your asking about an abortion it is aka induced miscarriage, where the fetus or embryo is is being miscarriage due to a medicine or surgery.
when you are suppose to have a baby, but then it dies inside of you.

Answer 2

It means that a fetus was incapable of proper development in the womb due to either problems with the health or anatomy of the pregnant woman, or problems with the early development of the fetus and placenta. When this occurs, the pregnancy is interrupted by the woman's body as nature's way to deal with fetal deformity or other problems in fetal development or to deal with a woman's inability to properly support the pregnancy to full term. This can be due to a variety of factors, including imbalance in the mother's hormones, diseases, or reproductive system anomalies and/or genetic or other developmental problems in the fetus.

Answer 3

a miscarrage is when you are pregnant and the baby dies in your stomach. its very sad but true. :(

Answer 4

Most medical professionals refer to it as a spontaneous abortion.

Answer 5

before 20 weeks