Word.ws English Dictionary

OSA

OSA is the initialism of obstructive sleep apnea.

OSA is the initialism of osteosarcoma.

OSA is the initialism of on-shelf availability.

OSA is the initialism of Ontario Soccer Association.

OSA is the initialism of Ontario Society of Artists.

OSA is the initialism of Open Solutions Alliance.

Meaning of osteosarcoma

Noun

osteosarcoma (plural osteosarcomas or osteosarcomata)

  1. A type of cancer of the bone.
    • Even small osteosarcomas can be unimaginably painful.2010, Siddhartha Mukherjee, The Emperor of All Maladies, Fourth Estate (2011), page 43

Forms of OSA

pluralOSAs

Origin of OSA

Abbreviation.

Questions about OSA

What is OSA the initialism of?
OSA is the initialism of obstructive sleep apnea.

Words near OSA in the dictionary

  1. OS&Y
  2. OS&Ys
  3. os-
  4. OS-specific
  5. OS.
  6. OSA
  7. OSAA
  8. Osage
  9. Osage apple
  10. Osage apples
  11. Osage City

Source and license

Adapted from Wiktionary: OSA (page history and authors); osteosarcoma (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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Cite this entry: “OSA.” Word.ws, https://word.ws/osa. Based on Wiktionary, CC BY-SA 4.0.