Definition of cell lineage in US English:

cell lineage

noun

Biology
  • The manner in which the parts of a multicellular organism develop from the blastomeres of the embryo; the line of descent of a cell from a blastomere or other embryonic precursor; a population of cells sharing such a line of descent.

Origin

Late 19th century; earliest use found in Edmund Beecher Wilson (1856–1939).