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
Words, words, words! They shut one off from the universe.
Three quarters of the time one's never in contact with
things, only with the beastly words that stand for them.