birth control

英：[bə:θ kənˈtrəul]

美：[bɚθ kənˈtrol]

noun

deliberate prevention of conception or impregnation (as by use of birth control pills, IUDs, condoms, coitus interruptus, vasectomy, or tubal ligation) : contraception sense 1 … the rise in use of fertility apps and period trackers suggests women are keen for a hormone-free form of birth control.—Nicola Davis and Niamh McIntyre—sometimes hyphenated before a nounbirth-control optionsThese clinics … provide all the birth-control methods for free.—Robert Abbott

Male sterilization, known as vasectomy, is the only long-acting method of birth control available to men …—Richard V. Reeves and Eleanor Krause

devices or preparations designed to prevent conceptionespecially: devices or preparations (such as IUDs or birth control pills) that typically contain progestin either alone or in combination with estrogen and that prevent ovulation, thicken cervical mucus, or thin the uterine lining in order to prevent conception : contraception sense 2 see also birth control pill

Enabling pharmacists to prescribe birth control will improve access to this medication, especially in rural and underserved areas where access to reproductive health care is limited. —The Newtown (Connecticut) Bee

计划生育

生育控制

减少种群生育率的各类措施。

The first known use of birth control was in 1876

black-eyed peanoun

cowpea

black eyenoun

a dark discoloration of the skin around the eye as the result of a bruise

black deathnoun

plague (as bubonic plague) caused by a bacterium and especially in the epidemic form that spread through Asia and Europe in the 14th centuryalso: the 14th-century epidemic of plague

black booknoun

a book containing a blacklist

black beltnoun

one holding the rating of expert especially in various arts of self-defense (as karate)also: the rating itself

black bearnoun

the common usually black-furred bear found in North American forests

black bassnoun

any of several highly prized freshwater sunfishes native to eastern and central North America

black-and-blueadjective

darkly discolored as the result of a bruise

bituminous coalnoun

a coal that when heated yields considerable matter that escapes as gases called alsosoft coal

birth controlnoun

control of the number of births especially by preventing or lessening the occurrence of conception

devices or preparations used to prevent pregnancy

birth controlnoun

deliberate prevention of conception or impregnation (as by use of birth control pills, IUDs, condoms, coitus interruptus, vasectomy, or tubal ligation) : contraception sense 1—sometimes hyphenated when used before another noun… family planning services through programs such as Medicaid and Title X, which have been critical in reducing costs and expanding access for low-income women to the birth-control method of their choice.—Cecile Richards, The New England Journal of Medicine

… after careful consideration of the various types of birth control available, a woman may choose a diaphragm (see diaphragm sense 3) as her major method of pregnancy protection. … It is not necessary for her to rethink all of the birth control options every time she has sex.—James Jaccard et al., New Directions for Child and Adolescent Development

devices or preparations designed to prevent conceptionespecially: devices or preparations (such as IUDs or birth control pills) that typically contain progestin either alone or in combination with estrogen and that stop ovulation, thicken cervical mucus, or thin the uterine lining in order to prevent conception : contraception sense 2 see also birth control pill

For women of many identities, oral birth control represents an affordable, non-invasive, and effective means of family planning. —Susannah Iles, Michigan Journal of Gender and Law