heliochromic

from The Collaborative International Dictionary of English v.0.48

Heliochromic \He`li*o*chro"mic\ (h[=e]`l[i^]*[-o]*kr[=o]"m[i^]k
   or h[=e]`l[i^]*[-o]*kr[o^]m"[i^]k), a.
   Pertaining to, or produced by, heliochromy.
   [1913 Webster]