hyperpigmentation

About 0.26 uses per million words.

Meaning

1. noun A high degree of pigmentation; too much pigmentation.
2. noun The darkening of an area of skin or nails, caused by increased melanin.

Similar words

hypo dyspigmentation melanonychia hyperchromia melanoderma melanosis depigmentation malpigmentation overpigmentation melanodermia

Often followed by

of and is in may or are with that

Word family

hyperpigmented