‖Hy′per‐æ″mi‐a (?), n. [NL., fr. Gr. υπἕρ over + αἱ̑μα 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.