hyperchromatism

About 0.02 uses per million words.

Meaning

1. noun An abnormal intensity of colour or colouring, such as in birds
2. noun An elevated level of chromatin in the skin

Similar words

hypochromatism acidochromism spherochromatism mechanochromism goniochromism chromistan metallochromy stenochrome ommochrome pleochroic halo

Often followed by

and of with or is are in