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Key Terms

ambilineal
a type of unilateral descent that follows either the father’s or the mother’s side exclusively
bigamy
the act of entering into marriage while still married to another person
bilateral descent
the tracing of kinship through both parents’ ancestral lines
cohabitation
the act of a couple sharing a residence while they are not married
extended family
a household that includes at least one parent and child as well as other relatives like grandparents, aunts, uncles, and cousins
family
socially recognized groups of individuals who may be joined by blood, marriage, or adoption and who form an emotional connection and an economic unit of society
family life course
a sociological model of family that sees the progression of events as fluid rather than as occurring in strict stages
family life cycle
a set of predictable steps and patterns families experience over time
family of orientation
the family into which one is born
family of procreation
the family unit that an adult creates by partnering with someone—typically through marriage—and having, adopting, or raising children
intimate partner violence (IPV)
violence that occurs between individuals who maintain a romantic or sexual relationship
kinship
a person’s traceable ancestry (by blood, marriage, and/or adoption)
marriage
a legally recognized contract between two or more people in a sexual relationship who have an expectation of permanence about their relationship
matrilineal descent
a type of unilateral descent that follows the mother’s side only
matrilocal residence
a system in which it is customary for a husband to live with the his wife’s family
monogamy
the act of being married to only one person at a time
nuclear family
two parents (traditionally a married husband and wife) and children living in the same household
patrilineal descent
a type of unilateral descent that follows the father’s line only
patrilocal residence
a system in which it is customary for the a wife to live with (or near) her husband’s family
polygamy
the state of being committed or married to more than one person at a time
shaken-baby syndrome
a group of medical symptoms such as brain swelling and retinal hemorrhage resulting from forcefully shaking or impacting an infant’s head
unilateral descent
the tracing of kinship through one parent only.
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