# phakomatosis

> English word · Noun · IPA /ˌfeɪkəʊməˈtəʊsɪs/

## Definitions
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.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/phakomatosis