The following glossary of medical terms was assembled as part of a project on medicine from 1760-1830 but it includes some terms from a wider period. I have drawn on several sources, including, with the permission of the author, Medical Terms used in the late 18th Century which appeared on a now obsolete web site written my Melanie McClusky. Information from Dr Johnson's Dictionary, first published in 1755, is shown in red.
Figure 2 is a simple cartoon showing three different types of aquifers: confined, unconfined, and perched. Recharge zones are typically at higher altitudes but can occur wherever water enters an aquifer, such as from rain, snowmelt, river and reservoir leakage, or from irrigation.
An aquifer is a layer of water in the soil. A well is a hole drilled into that soil that will permit water to fill the lower levels of that hole. Water is then pumped from the â¦ well. A pump connected to a metal pipe is lowered to the bottom of the well. The pump is generally operated by a motor located at the surface. The pump forces water from the aquifer up the pipe and to the distribution point at the surface.