Any process that activates or increases the frequency, rate or extent of trophectodermal cell proliferation.
Synonyms:
exact_synonym:
positive regulation of trophectoderm cell proliferation; up regulation of trophectoderm cell proliferation; up regulation of trophectodermal cell proliferation; upregulation of trophectoderm cell proliferation; upregulation of trophectodermal cell proliferation
narrow_synonym:
activation of trophectoderm cell proliferation; activation of trophectodermal cell proliferation