premature birth

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birth

 [berth]
a coming into being; the act or process of being born.
birth certificate a written, authenticated record of the birth of a child, required by state laws throughout the United States. After a birth is registered, a birth certificate is issued which represents legal proof of parentage, age, and citizenship, and is of great personal and legal importance. A birth certificate is required for many legal and business or personal transactions. Whether the child is born at home or at the hospital, the physician, midwife, or other attendant must report the birth to the local or state registrar. The report becomes a permanent record, and a certificate is issued to the parents. If a child dies during birth, an immediate report and certification of the birth and death are required, containing a statement of the cause of death.
birth control the concept of limiting the size of families by measures designed to prevent conception. The movement of that name began in modern times as a humanitarian reform to conserve the health of mothers and the welfare of children, especially among the poor. More recently it has been superseded by the term family planning, which means planning the arrival of children to correspond with the desire and resources of the married couple. See also contraception.
multiple birth the birth of two or more offspring produced in the same gestation period.
premature birth (preterm birth) expulsion of the fetus from the uterus before termination of the normal gestation period, but after independent existence has become possible; defined as birth occurring before 37 completed weeks (295 days), counting from the first day of the last normal menstrual period. Approximately 6 to 8 per cent of all live births in the United States are premature, and premature births are the major cause of neonatal morbidity and mortality.

pre·ma·ture birth

birth of an infant who has achieved a gestation of at least 20 weeks or birth weight of at least 500 g, but before 37 weeks' gestation.

premature birth

n.
The birth of an infant after the period of viability but before full term.

pre·ma·ture birth

(prē'mă-chŭr' bĭrth)
Birth of an infant after viability has been achieved with gestation of at least 20 weeks or birth weight of at least 500 g, but before 37 weeks.

pre·ma·ture birth

(prē'mă-chŭr' bĭrth)
Birth of an infant after viability has been achieved with gestation of at least 20 weeks or birth weight of at least 500 g, but before 37 weeks.

premature birth,

n a birth in which the child is delivered before it has reached the full period of gestation (37 weeks).

birth

a coming into being; the act or process of being born. See also parturition.

birth canal
the canal through which the fetus passes in birth; comprising the uterus, cervix, vagina and vulva.
birth cohort
see cohort.
birth control
a term rarely used in dealing with animals. Instead see population control, contraception.
birth defects
see congenital defects.
birth difficulties
dystocia.
birth injury
occurs to the fetus during birth. Includes rib fracture and meningeal hemorrhage.
birth interval
the interval between succeeding parturitions. See also calving interval.
multiple birth
the birth of two or more offspring produced in the same gestation period.
birth order
the chronological order of births in a multiple birth. May have significance in causing stillbirths if the intervals between births are prolonged because of inertia.
premature birth
expulsion of the fetus from the uterus before termination of the normal gestation period, but after independent existence has become a possibility. In humans prematurity is defined as a pregnancy of less than 37 weeks in a pregnancy normally lasting 40 weeks.
birth process
comprises maturation of the fetus, relaxation of the bony pelvis and associated ligaments, softening and relaxation of the cervix, vagina, vulva and perineum, correct disposition of the fetus, contractions of the uterine myometrium and finally the only component under voluntary control, contraction of the abdominal muscles.
birth rate
the number of births during one year for the total population (crude birth rate), for the female population (refined birth rate), or for the female population of reproductive age (true birth rate). Not a term much used with reference to animals. See calving, lambing rate.
birth size
stature, including height at withers, crown to tail head length at birth.
birth weight
the weight at birth. A significant determinant of survival in any species and of the occurrence of dystocia. See also prolonged gestation.
References in periodicals archive ?
Amillia Sonja Taylor was the smallest baby to be born at In 1990 conjoined twins Abigail and Brittany Hensel were born with one body in Carver County, Minnesota.
But the most premature baby to survive was Amillia Taylor, who was born at 22 weeks and six days in Florida in October 2006.
to the delight of mum Tamsin The most premature baby to survive is Amillia Taylor, born in Florida in 2006 at 21wks, six days, weighing 10oz Pictures: WORLDWIDEFEATURES.
THE size of a ballpoint pen and weighing in at just 10 ounces, tiny Amillia Taylor was finally given the all-clear to go home with her parents after being born prematurely at just 21 weeks and six days.
SIR - Your article "Baby born at under 22 weeks not going home yet,' (Western Mail, February 22), on the American baby Amillia Sonja Taylor's early arrival (all 9' inches and 10 ounces of her), has again opened the debate in the media and press about the viability of unborn children
Amillia Sonja Taylor, born at 21 weeks, six days, who weighed in at just under 10 ounces, and who, when fully stretched out, was 9 1/2 inches long, finally went home in February.
Tiny baby Amillia Taylor has startled medics in the US after surviving birth at 21 weeks and six days.
THE name Amillia Taylor and the word miracle' have become inseparable.
Then he delivered Amillia Taylor, who weighed just 10 ounces, and appears to be the youngest premature baby ever to survive, beating the record by more than a week.
10 In which city has world-recordbreaking premature baby Amillia Taylor just left hospital, having been born at just under 22 weeks weighing 10 ounces?
Doctors say Amillia is the first baby known to survive after a gestation period of fewer than 23 weeks.
Amillia Taylor was born measuring just nine-and-a-half inches long and weighing under 10oz.