single direct-action pump
1Pump — For information on Wikipedia project related discussions, see . A pump is a device used to move gases, liquids or slurries. A pump moves liquids or gases from lower pressure to higher pressure, and overcomes this difference in pressure by adding… …
2Action potential — In physiology, an action potential is a short lasting event in which the electrical membrane potential of a cell rapidly rises and falls, following a consistent trajectory. Action potentials occur in several types of animal cells, called… …
3Hand pump — This article is about water and air pumps. For the beer dispensing device, see Beer engine. A rural handpump in Belgium. Hand pumps are manually operated pumps; they use human power and mechanical advantage to move fluids or air from one place to …
4Discovery and development of proton pump inhibitors — Proton pump inhibitors (PPIs) block the gastric Hydrogen potassium ATPase (H+,K+ ATPase) and inhibit gastric acid secretion. These drugs have emerged as the treatment of choice for acid related diseases, including gastroesophageal reflux disease… …
5Firearm action — In firearms terminology, an action is the system of operation used to load rounds and/or seal the breech. In many weapons a breechblock reciprocates in the receiver of the firearm. The term is also used for the physical parts inside the weapon… …
6Leviathan and the Air-Pump — Infobox Book name = Leviathan and the Air Pump title orig = translator = image caption = author = Steven Shapin and Simon Schaffer illustrator = cover artist = country = USA language = English series = genre = publisher = Princeton University… …
7Centrifugal pump — Warman centrifugal pump in a coal preparation plant application A centrifugal pump is a rotodynamic pump that uses a rotating impeller to create flow by the addition of energy to a fluid. Centrifugal pumps are commonly used to move liquids… …
8Diffusion pump — Six inch oil diffusion pump. Diffusion pumps use a high speed jet of vapor to direct gas molecules in the pump throat down into the bottom of the pump and out the exhaust. Presented in 1915 by Wolfgang Gaede[1] and using mercury vapor, they were… …
9endocrine system, human — ▪ anatomy Introduction group of ductless glands (gland) that regulate body processes by secreting chemical substances called hormones (hormone). Hormones act on nearby tissues or are carried in the bloodstream to act on specific target organs… …
10drug — drug1 /drug/, n., v., drugged, drugging. n. 1. Pharm. a chemical substance used in the treatment, cure, prevention, or diagnosis of disease or used to otherwise enhance physical or mental well being. 2. (in federal law) a. any substance… …
