Pléthora. n.s. [from πληθωρα.] The state in which the vessels are fuller of humours than is agreeable to a natural state or health; arises either from a diminution of some natural evacuations, or from debauch and feeding higher or more in quantity than the ordinary powers of the viscera can digest: evacuations and exercise are its remedies.
The diseases of the fluids are a plethora, or too great abundance of laudable juices. Arbuthnot on Aliments.