noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   Any disease or abnormality of the hair. countable, uncountable
2. 2
   An overgrowth of hair; hairiness. countable, specifically, uncountable

Etymology

From tricho- + -osis.

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