neu·​ro·​fi·​bro·​ma·​to·​sis | \ ˌnu̇r-ō-(ˌ)fī-ˌbrō-mə-ˈtō-səs How to pronounce neurofibromatosis (audio) , ˌnyu̇r- \

Definition of neurofibromatosis

: a disorder inherited as an autosomal dominant and characterized especially by brown spots on the skin, neurofibromas of peripheral nerves, and deformities of subcutaneous tissue and bone

Examples of neurofibromatosis in a Sentence

Recent Examples on the Web The exact underlying cause of glioblastoma is unknown in most cases, but in some, it's linked to genetic syndromes: neurofibromatosis type 1, Turcot syndrome and Li Fraumeni syndrome, according to NIH. CBS News, 5 Aug. 2022 NF Hope Concert, a benefit for neurofibromatosis, will be held at 7 p.m. Monday, June 27, at the Madden Theatre, 171 E. Chicago Ave. Michelle Mullins, Chicago Tribune, 24 June 2022 Collins was by then a renowned geneticist who had helped to discover key genes behind cystic fibrosis, Type 2 diabetes, Huntington’s disease, neurofibromatosis, and other conditions. Dhruv Khullar, The New Yorker, 7 Apr. 2022 That’s the plan for the annual nationwide Undies Run that benefits research to find cures for neurofibromatosis. oregonlive, 9 Feb. 2022 The combined compounds may suppress the proliferation of neurofibromatosis 2 tumor cells. Annette Bakker, STAT, 15 Dec. 2021 While most see a rhinoceros, Hollant sees his son, who was diagnosed at a young age with neurofibromatosis. Susan Dunne,, 9 Dec. 2021 Folk’s 21-year-old cousin Blake currently has five brain tumors and has undergone at least 20 surgeries since getting diagnosed with neurofibromatosis as a baby. Globe Staff,, 2 Dec. 2021 Kicker Nick Folk chose the Children’s Tumor Foundation, a nonprofit dedicated to improving the health and well-being of those affected by neurofibromatosis. Globe Staff,, 2 Dec. 2021 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'neurofibromatosis.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of neurofibromatosis

1896, in the meaning defined above

History and Etymology for neurofibromatosis

neurofibromat-, Greco-Latin stem of neurofibroma + -osis

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Time Traveler for neurofibromatosis

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The first known use of neurofibromatosis was in 1896

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Dictionary Entries Near neurofibromatosis



neuroformative system

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Last Updated

7 Aug 2022

Cite this Entry

“Neurofibromatosis.” Dictionary, Merriam-Webster, Accessed 7 Aug. 2022.

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More Definitions for neurofibromatosis


neu·​ro·​fi·​bro·​ma·​to·​sis | \ -fī-ˌbrō-mə-ˈtō-səs How to pronounce neurofibromatosis (audio) \
plural neurofibromatoses\ -​ˌsēz How to pronounce neurofibromatosis (audio) \

Medical Definition of neurofibromatosis

1 also neurofibromatosis type 1 or neurofibromatosis 1 : an inherited developmental disorder characterized especially by brown spots on the skin that are typically present at birth, neurofibromas of peripheral nerves, and deformities of subcutaneous tissues and bone abbreviation NF, NF-1

called also Recklinghausen's disease, von Recklinghausen's disease

2 also neurofibromatosis type 2 or neurofibromatosis 2 : an inherited disorder characterized by bilateral acoustic neuromas developing in childhood or early adulthood that are typically accompanied by other nonmalignant tumors of the central nervous system abbreviation NF, NF-2

Note: Both types of neurofibromatosis are inherited as an autosomal dominant trait requiring that one parent pass on a copy of the defective gene on a chromosome other than a sex chromosome. Type 1 is much more common than type 2.

More from Merriam-Webster on neurofibromatosis Encyclopedia article about neurofibromatosis


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