Definition of naproxen in English:
 naproxen
noun naˈprɒksɛnnəˈpräksən
mass nounMedicine A synthetic compound used as an anti-inflammatory drug, especially in the treatment of headache and arthritis.
Chemical formula: C₁₄H₁₄O₃
 Example sentencesExamples
-  The headache usually responds to over-the-counter analgesics, such as aspirin, ibuprofen, naproxen, or acetaminophen.
 -  Even traditional anti-inflammatory drugs like naproxen and ibuprofen may be linked to cardiovascular complications like heart failure.
 -  They may need aspirin or non-steroidal anti-inflammatory drugs like naproxen or sulindac.
 -  Aspirin and drugs like ibuprofen and naproxen can cause life-threatening ulcers.
 -  But what happens when you can't tolerate aspirin or other non-steroidal anti-inflammatory drugs like ibuprofen or naproxen?
 
Origin
  
1970s: from na(phthyl) + pr(opionic) + ox(y-), + -en on the pattern of words such as tamoxifen.