birth order

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birth order

A child’s ordinal position among the children in a family.


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
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 ?
S8 was a Grade 6 student whose total score summed to 16 and who responded at Level 3 for the random interview task, QI1, and at Level 4 for the birth order question, Q13.
The data in Table 2 shows that the incidence of stunting increased monotonically with the child's birth order in the family.
He certainly has firstborn-like traits, either because of literal birth order or because he was a younger sibling in a disorganized family, as his sisters' horrible manners suggest it to have been, and thus would invert the usual pattern.
Table 3 Duration of breast-feeding, according to birth order Birth order Child 1 Child 2 Child 3 Child 4 Parameter (n = 130) (n = 96) (n = 35) (n = 9) Median no.
The evidence to date indicates that the birth order effect on sexual orientation in men is not primarily associated with number of prior all siblings (male and females) but with number of prior brothers.
The relationship between birth order and competitive athletic anxiety has not been thoroughly researched.
1984) found no significant relationship between birth order and assertiveness in women, although first-born females did demonstrate more assertive behavior than later born children.
Previous research has examined how child achievement is influenced by family size (Blake 1989; Hanushek 1992), birth order (Behrman and Taubman 1986; Kessler 1991), and sex composition of the sibship (Butcher and Case 1994; Kaestner 1997; Hauser and Kuo 1998).
Obviously birth order plays a role, but potential successors also include non-family workers.
People who select chief executives, according to Sulloway, "would do well to consider candidates' birth order.
Such factors as race, class, and gender have attracted much attention in recent academic studies of creativity; three others need to be considered: place of birth, birth order, and sexual orientation.
Empirical evidence supports the idea that the amounts of (a) process and (b) outcome feedback that an individual receives from parents may be related to birth order.