prismatically coloured halos indicate the presence of watery vapour, whereas white ones show that the vapour is frozen.
The firelight played on her hair, glowing in it prismatically.
These ducts are often prismatically compressed by each other.
1709, from Greek prismat-, stem of prisma (see prism) + -ic. Related: Prismatical (1650s).
Relating to or resembling a prism.
Formed by refraction of light through a prism, used especially of a spectrum of light.