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amphetamine |
a drug that stimulates the central nervous system, depressing appetite and heightening activity. |
anastomose |
to connect, either by natural branching growth or by surgery (parts of a blood vessel, nerve, or any branching system). |
ancien régime |
any former political and social system. [1/2 definitions] |
android |
(cap.) an operating system developed by Google that is used for mobile devices such as smartphones and tablets. [3/4 definitions] |
anticyclone |
a large system of winds that rotates around a center of high barometric pressure, moving clockwise in the Northern Hemisphere and counterclockwise in the Southern, and usu. producing cool, dry weather. (Cf. cyclone.) |
antiestablishment |
opposed to the established hierarchy, system, or leadership of a large government, corporation, church, or the like. |
apothecaries' measure |
a system of fluid measure used to dispense liquid drugs. |
apothecaries' weight |
a system of weights used to dispense drugs. |
Appalachian Mountains |
mountain system in eastern North America extending from southeastern Canada to central Alabama in the United States; Appalachians. |
apparatus |
any system, such as a political organization, that is designed to accomplish a specific purpose. [1/2 definitions] |
arcuation |
a system, row, or grouping of arches. [1/3 definitions] |
assimilate |
of food, to be or become absorbed into an organism's system. [1/8 definitions] |
autoimmune |
characterized by or relating to a condition in which normal cells are attacked by the body's own immune system. |
automate |
to convert to a mechanical or electronic system of operation. [2/3 definitions] |
autonomic |
in physiology, of or relating to the autonomic nervous system. [1/3 definitions] |
autonomic nervous system |
the part of the nervous system in vertebrates that controls involuntary bodily processes, such as the operation of the heart, stomach, and glands; sympathetic and parasympathetic nervous systems together. |
avdp. |
abbreviation of "avoirdupois," a system of weight based on a pound equal to sixteen ounces or to 453.59 grams. |
avoirdupois weight |
a system of weight based on a pound equal to sixteen ounces or to 453.59 grams. |
AWACS |
an aircraft fitted with a radome and carrying sophisticated radar and computer equipment, used for reconnaissance and for directing ground forces, or a warning system employing such aircraft (acronym for "Airborne Warning and Control System"). |
baroreceptor |
a nerve ending sensitive to blood pressure that helps regulate the dilation of blood vessels in the circulatory system. |
basis |
a particular system, mode of operation, standard, or guiding principle that underlies the way something else is established, decided on, or managed. [1/3 definitions] |
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