What is the Meaning & Definition of birth

The most widespread use that observes the term birth is that which refers to the completion of the human pregnancy, i.e., the time in which baby leaves the womb to start forming part of the world.
At the same it's considered as the beginning of a person's life and then age will be defined precisely by this time in most of the cultures of the world.
The pregnant woman will know that the birth of his son is imminent when she begins experiencing regular uterine contractions that will crescendo in both frequency and intensity.
Natural birth involves three stages, first the disappearance and dilatation of the neck of the uterus, descent and birth of the baby and the birth of the placenta. Although this is more normal mode of birth, in some cases of risk, birth can carry out caesarean delivery, which involves a small incision in the abdomen to remove the baby instead that it is issued through the vagina.
Is common at the time of birth for the expectant mother is accompanied in addition by the father of the baby, presence that will help it to overcome the situation in the emotional field, by a group of professionals specialized in this field, such as midwives or obstetricians, that will help it to achieve this through suggestions and recommendations.
But there are other uses of the term birth...
The place or site where something has its origin or principle also called it birth. The source of the River starts well north of our town.
On the other hand, at the beginning or beginning of any activity, relationship, among others, it is appointed as birth. The cooperation between companies can be the birth of a lasting friendship.
In addition, the representation of the birth of the child Jesus in Bethlehem portal known as birth. Through different figures that emulate the characters actors of that time (Joseph, Mary, baby Jesus, a mule and an ox, the three wise men with their gifts and the star of Bethlehem), when approaching the anniversary of the birth of Jesus on December 25, it is common to see both houses as the scene of the birth of the son of God in the churches.