- The presence of an increased amount of bloodflow in a part or organ. SEE ALSO: congestion. [hyper- + G. haima, blood]- active h. h. due to an increased afflux of arterial blood into dilated capillaries. SYN: arterial h., fluxionary h..- arterial h. SYN: active h..- collateral h. increased blood flow through abundant collateral channels when the circulation through the main artery to a part is arrested.- fluxionary h. SYN: active h..- passive h. h. due to an obstruction in the flow of blood from the affected part, the venous radicles becoming distended. SYN: venous h..- peristatic h. SYN: peristasis.
* * *hy·per·emia or chiefly Brit hy·per·ae·mia .hī-pə-'rē-mē-ə n excess of blood in a body part (as from an increased flow of blood due to vasodilation): CONGESTIONhy·per·emic or chiefly Brit hy·per·ae·mic -mik adj
* * *hy·per·emia (hi″pər-eґme-ə) [hyper- + -emia] an increase of blood in a part; cf. congestion. Called also engorgement. hyperemic adj
Medical dictionary. 2011.