hy·per·chro·mia \ˌ ̷ ̷ ̷ ̷ˈkrōmēə\noun (-s) Etymology: New Latin, from hyper- + -chromia 1.: excessive pigmentation (as of the skin) 2.: a state of the red blood cells marked by increase in the hemoglobin content • hy·per·chro·mic\| ̷ ̷ ̷ ̷| ̷ ̷mik\adjective