Phakomatosis

//ˌfeɪkəʊməˈtəʊsɪs// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Any of a group of neurocutaneous disorders of the central nervous system causing lesions on the skin and eye.

Etymology

From phak- + -omato- + -osis, from the Greek φακός (phakós, “spot, lens”), -ωμα (-ōma, “process”), and the suffix -osis; the term was introduced by Dutch ophthalmologist Jan van der Hoeve in 1920, before the distinct genetic basis of each of these diseases was understood.

Related phrases

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