noun · 1 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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/ˌfeɪkəʊməˈtəʊsɪs/
/ˌfæk-/
1
noun
Meaning 1
Any of a group of neurocutaneous disorders of the central nervous system causing lesions on the skin and eye.
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
History
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.