premature birth


Also found in: Dictionary, Thesaurus, Legal, Encyclopedia, Wikipedia.

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 More recently it has been superseded by the term family planning, which means planning the arrival of children to correspond with the desire and resources of the married couple.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 ?
The March of Dimes works to improve the health of babies by preventing birth defects, premature birth and infant mortality.
A third of all premature births could be caused by a type of bacteria, new research has suggested.
There are 1,300 deaths due to complications from premature birth each year in the UK, mostly among babies born under 28 weeks.
Women who had chlamydia were 17% more likely to have an unplanned premature birth and 40% more likely to have a stillborn baby, the results showed.
Most premature births fall in the "late preterm" category, born between 32 and 37 weeks.
The increase in premature birth risk due to ammonium nitrate particles suggests secondary pollutants are also negatively impacting the health of unborn babies.
Premature Birth Screening consists of a review of medical history, ultrasound scan and a test for fetal Fibronectin.
In many cases, the cause of premature birth is unknown.
Whether it is premature birth or any other case, we work hard to get things up to excellent standards," said Dr Al Hamer.
Melissa Swinney and partner Bradley Gaughan, of Bedlington, know the heartache premature birth can lead to.
WOMEN who stop smoking before week 15 of pregnancy cut their risk of spontaneous premature birth and having small babies to the same as non-smokers, according to new research.
THE cost of premature birth in England and Wales is pounds 939 million per year and rising, a study out today suggests.