Word.ws English Dictionary

nasolabial triangle

nasolabial triangle noun: a triangular area of the face encompassing the lips and nose.

Noun

nasolabial triangle (uncountable)

  1. A triangular area of the face encompassing the lips and nose.
    • For that reason they may appear frequently in syntropism with the sharply demarcated malar flush and anemic nasolabial triangle, even without scarlet fever.1933, The Year Book of Pediatrics, volume 1940
    • Hyperemia of the face, which stands out during the first few days of the illness (white nasolabial triangle), is changed to a peculiar paleness of the face that looks like a mask.1959, U.S. Surgeon General's Office, Translations from the Soviet Literature on Hemorrhagic Fever: 1944–1951, page 2

Examples of nasolabial triangle in a sentence

  • Before all these sutures are tied, the mucous membranes of the edges of the nasolabial triangle are closed.1988, John M. Loré, An Atlas of Head and Neck Surgery, page 400:
  • This is especially likely to occur in the presence of infection in the upper lip, lower part of the nose, and adjoining nasolabial triangle.2009, Melvin A. Shiffman, editor, Autologous Fat Transfer: Art, Science, and Clinical Practice, Springer, page 422:

Synonyms of nasolabial triangle

Questions about nasolabial triangle

What does nasolabial triangle mean?
Nasolabial triangle means a triangular area of the face encompassing the lips and nose.
How do you use nasolabial triangle in a sentence?
Before all these sutures are tied, the mucous membranes of the edges of the nasolabial triangle are closed.
What part of speech is nasolabial triangle?
Nasolabial triangle is a noun.

Words near nasolabial triangle in the dictionary

  1. nasojejunal
  2. nasojejunostomies
  3. nasojejunostomy
  4. nasojugal
  5. nasolabial
  6. nasolabial triangle
  7. nasolachrymal
  8. nasolacrimal
  9. nasolacrimal duct
  10. nasolacrimal ducts
  11. nasolacrimal sac

Source and license

Adapted from Wiktionary: nasolabial triangle (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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