negative regulation of iridophore differentiation
down regulation of iridophore differentiation
exact
down-regulation of iridophore differentiation
exact
downregulation of iridophore differentiation
exact
inhibition of iridophore differentiation
narrow
Any process that stops, prevents, or reduces the frequency, rate or extent of iridophore differentiation.
GO:0050937
regulation of iridophore differentiation
is_a
GO:0050941
negative regulation of pigment cell differentiation
is_a
GO:0050935
iridophore differentiation
negatively_regulates