endocardial cell differentiation
The process in which a relatively unspecialized cell acquires the specialized structural and/or functional features of an endocardial cell. An endocardial cell is a specialized endothelial cell that makes up the endocardium portion of the heart. The endocardium is the innermost layer of tissue of the heart, and lines the heart chambers.
GO:0003348
cardiac endothelial cell differentiation
is_a
GO:0003157
endocardium development
part_of