noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The morbid deposition of black matter, often of a malignant character, causing pigmented tumours. countable, uncountable
2. 2
   a condition characterized by abnormal deposits of melanin (especially in the skin) wordnet
3. 3
   A pigmentation of tissue. countable, uncountable
4. 4
   Synonym of nigredo. countable, uncountable

Synonyms

All synonyms

black cancerblack cancermelanismnigredo

Etymology

From melano- + -osis.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.