Medicine. = plethora, n. 1. Now archaic.

Medicine. Abundance or (usually) excess of blood or of humours; fullness or congestion (of blood vessels); an instance of this. Cf. plethora, n. 1…

Medicine. Originally: overabundance of one or more humours, esp. blood; an instance of this. In later use: excessive volume of blood…

plethoric condition or degree.

Medicine. Plethora (of blood or blood vessels); (also) the restoration of body tissue. Cf. plerotic, adj. 1. Obsolete. rare.

An abnormally large volume of blood in the body.

generalized congestion of blood vessels.

= polyaemia, n.