photomagnetism means the branch of science that deals with the relation of magnetism to light, or the effect in which a material acquires or loses its ferromagnetic properties in response to light. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
Etymology
From photo- + magnetism.
noun
- The branch of science that deals with the relation of magnetism to light, or the effect in which a material acquires or loses its ferromagnetic properties in response to light.