cardioblast proliferation
The multiplication or reproduction of cardioblasts, resulting in the expansion of the population in the heart field. A cardioblast is a cardiac precursor cell. It is a cell that has been committed to a cardiac fate, but will undergo more cell division rather than terminally differentiating.
GO:0061323
cell proliferation involved in heart morphogenesis
is_a
GO:0060914
heart formation
part_of