Definition of Parma violet
1
: a sweet violet widely cultivated for its pale lavender sweet-scented fully double flowers
2
or
parma violet
a
: a moderate violet that is bluer and lighter than damson, bluer and paler than Roman purple, and paler and slightly redder than prelate — called also
Parme, violet Parme
b
of textiles
: a strong violet that is redder and lighter than pansy, redder, lighter, and stronger than royal purple (see royal purple 2), and lighter, stronger, and slightly redder than clematis
