angioblast

an·gio·blast

noun \ˈan-jē-ə-ˌblast\

Definition of ANGIOBLAST

1

: one of the extraembryonic mesenchyme cells that differentiate into the endothelium of the embryonic blood vessels

2

: the mesenchymal tissue that gives rise to embryonic blood cells and blood vessels

—an·gio·blas·tic \ˌan-jē-ə-ˈblas-tik\ adjective