Associations to the word «Photochromism»
Wiktionary
PHOTOCHROMISM, noun. The reversible transformation of the optical properties of a material when exposed to electromagnetic radiation, especially the reversible darkening of a plastic lens when exposed to sunlight.
Wise words
Don't use words too big for the subject. Don't say
"infinitely" when you mean "very"; otherwise you'll have no
word left when you want to talk about something really
infinite.