- a blue-green organic compound, (CHCN)N
- any of a group of brilliant, green or blue pigments that are metal, esp. copper, derivatives of this compound
Origin of phthalocyaninephthal(ic acid) + -o- + cyanine
A stable blue-green porphyrin-based organic dye, C32H18N8, or any of several blue-green derivatives containing chelated metals, used in enamels, printing inks, linoleum, and plastics.
Origin of phthalocyaninephthal(ic) cyanine