PHOTOCHROMIC

Adjective

photochromic (comparative more photochromic, superlative most photochromic)

of, related to, or produced by photochromism

(chemistry) Relating to the part of a molecule responsible for its photochromism

Source: Wiktionary

Pho`to*chro"mic, Pho`to*chro*mat"ic, a.

Definition: Of or pertaining to photochromy; produced by photochromy.

Source: Webster’s Unabridged Dictionary 1913 Edition