ˈ ̷ ̷ˌ ̷ ̷ noun
Etymology: Middle English bloodstrem, from blood + strem stream — more at stream
1. : the flowing blood in a circulatory system
2. : something regarded as comparable to the living bloodstream especially in pervasive or vital quality
the influence of communism had entered the bloodstream of national politics in southeast Asia — New York Times
Lancashire might be in thriving health if its bloodstream of labor had not been so ruthlessly tapped during the war — Economist