There are multiple definitions:

1. cross-sectional area(English)

   • PCSA
   • Vessel properties, Coronary circulation

2. Canadian Standards Association(English)

   • Standards, Organizations (documentation)

3. central sleep apnea(English)

   • a disorder where breathing repeatedly stops and starts during sleep because the brain fails to send proper signals to respiratory muscles, distinct from physical airway blockages in Obstructive Sleep Apnea (OSA). Key causes include heart failure, stroke, opioids, and high altitude
   • AHI, AI, CAI, CHF, CPAP, CSR, HFrEF, NIDC, ODI, OSA, NREM, REM
   • Sleep medicine, Pulmonology, Risk factor, Cardiology
   • https://doi.org…/smr.2016.00059
   • https://doi.org…967-023-04558-w
   • https://doi.org…AIL.2014.10.017
   • https://doi.org…jca.2026.03.019

4. centrale sterilisatie afdeling(Dutch)

   • CSC

5. cyclosporine(English)

   • HTX
   • Immunology, Transplantation

6. child sexual abuse(English)

   • encompasses many types of sexually abusive acts toward children, including sexual assault, rape, incest, and the commercial sexual exploitation
   • Sexuality, Pediatrics, Misconduct
   • https://dx.doi.…chc.2014.01.003

7. childhood sexual assault(English)

   • may result in poorer emotion regulation and interpersonal functioning, potentially affecting the tolerability and effectiveness of evidence-based treatments for posttraumatic stress disorder
   • EBT, PTSD
   • Sexuality, Pediatrics, Misconduct
   • https://doi.org/10.1002/smi.2838

8. cervical spinal angle(English)

   • dCSA, JOA, O-C 2, OCF, POCA, VAS
   • Spine (or spinal cord), Surgery
   • https://doi.org/10.1111/os.12553

9. congenital sideroblastic anemia(English)

   • HUMARA, PUS1, TRMA
   • Erythrocyte, Hematology, Congenital disorders, Mitochondrion
   • https://doi.org….1002/pbc.22244

10. critical shoulder angle(English)

    • refers to the anatomical shape of the acromion, and is intrinsically associated with the development of degenerative shoulder diseases
    • AI, CTA, IM, LAA, OA, PCC, RCT, DRCT, DSD, PGOA
    • Anatomy, Shoulder and other joints, Orthopedics
    • https://doi.org…2891-017-1559-4
    • https://doi.org…81/or.2020.8457

11. chondrosarcoma(English)

    • is the second most common primary tumor of bone in humans and dogs and accounts for approximately 5% to 10% of all canine primary bone tumors
    • Oncology, Skeleton and bone (formation), Veterinary medicine
    • https://doi.org…-2362-5.00024-4

12. Controlled Substance Act(English)

    • lists factors considered when determining which schedule a drug or other substance should be placed
    • DEA
    • Addiction and health, Legal issues, Public Health
    • http://pubmed.n…h.gov/34283451/

13. cocaine self-administration(English)

    • dHip, dStr, SSA, VTA
    • Addiction and health, Therapeutic approaches, Brain (dys)function, Anatomy
    • https://doi.org…398-024-02839-6

14. community-supported agriculture(English)

    • has the potential to improve access to fresh fruits and vegetables, yet low-income households seldom participate due to cost and other barriers
    • SNAP, SES
    • Nutrition, Lifestyle, Economics and health care, Financial issues
    • https://doi.org…000000000001209
    • https://doi.org…3390/nu16152450
    • https://www.wakkereakker.be/

15. catalyzed signal amplification(English)

    • a supersensitive method of paraffin immunohistochemistry. It incorporates antigen retrieval, the streptavidin-biotin complex (sABC) method, and the catalysing reporter deposition/catalysing biotinylated tyramide reaction
    • sABC
    • Histochemistry, Immunology
    • https://doi.org…a:1021785328984