Webster’s Revised Unabridged Dictionary · 1913
Hyperæmia
Hy′per·æ′mi·a, n. [NL., fr. Gr. ὑπέρ over + αἷμα blood.] (Med.) A superabundance or congestion of blood in an organ or part of the body.
Active hyperæmia, congestion due to increased flow of blood to a part. — Passive hyperæmia, interchange due to obstruction in the return of blood from a part.
— Hy′per·æ′mic (#), a.