There are multiple definitions:

1. Congressional Research Service(English)

2. cherry red spot(English)

   • includes posterior pole retinal thickening, nontransparency, and color changes. In some storage disorders, accumulation occurs in the ganglion cell layers causing retinal swelling and loss of retinal transparency
   • CRA
   • Ophthalmology
   • https://doi.org…38/eye.2013.271

3. conditional repetitive stimulation(English)

   • MEA

4. cardiorenal syndrome(English)

   • includes a series of different clinical phenotypes that underline the reciprocal influence of the heart and kidney in pathological conditions
   • ADHF, HF, AKI, AVP, BUN, CVP, GFR, NAG, NGAL, NYHA, RAAS, RBF, WRF, HFpEF
   • Nephrology, Cardiology, Pathology
   • https://doi.org…acc.2008.07.051
   • https://doi.org…1897-014-0218-4
   • https://doi.org…ard.2025.10.013

5. cardiorespiratory system(English)

   • model proposing a powerful parameter that captures complex regulatory states of the heart and lungs
   • ANS
   • Paradigm or theory, Model(ing), Respiratory system
   • https://doi.org…phys.2019.00371

6. cytokine release syndrome(English)

   • acute systemic inflammatory syndrome characterized by fever and multiple organ dysfunction that is associated with chimeric antigen receptor (CAR)-T cell therapy, therapeutic antibodies, and haploidentical allogeneic transplantation
   • CAR, COVID-19, ACHD, ADT, AF, AIC, BP, BRAF, BTKi, CAC, CAD, CAR-T, CIED, CLL, CMR, cTn, cTnI, CTRCD, ECG, GLS, GnRH, HbA1C, HER2, HSCT, ICI, IHD, IMID, LAVI, LVEF, MEK, MM, NT-proBNP, PI, RVEDV, TAPSE, TKI, TTE, VEGFi
   • Inflammasome, Cardiology, Chemotherapy
   • https://doi.org…0425-018-0343-9
   • 10.1016/j.ijant…cag.2020.105954
   • https://doi.org…cao.2024.07.017

7. cytoreductive surgery(English)

   • with hyperthermic intraperitoneal chemoperfusion
   • CDKN2A, HIPEC, CRS-HIPEC, PSM, LSC, AMN, CC, mTOR, PCI, PMP, SMAD4, TP53
   • Surgery
   • https://doi.org…36.2017.1291999
   • https://doi.org…464-019-07280-1
   • https://doi.org…434-023-13721-y

8. chronic rhinosinusitis(English)

   • considered a heterogeneous disease, with numerous predisposing factors with similar symptomatology, making it challenging to categorize CRS into clinically relevant subtypes
   • BTT, COT, MOT, OD, OT, PIOD, PVOD, TDI, URTI, ECM, LAP, ADD, QOL
   • ENT, Olfactory system, Infection
   • https://doi.org….1002/alr.22624
   • https://doi.org…55/2021/7428955
   • https://doi.org…arm.2023.123277

9. chronic restraint stress(English)

   • not only elevates blood corticosterone but also recapitulates the persisting depression-like behavior
   • Depression, Pituitary (gland)
   • https://doi.org…3041-020-0548-y

10. congenital rubella syndrome(English)

    • represents the manifestations of congenital infection with the rubella virus. The infection affects many fetal systems
    • Congenital disorders, Virology
    • https://doi.org…64150-2.00029-0

11. colorectal surgery(English)

    • CG, EA, ERAS, GAS, GI, MTL, POI, PONV, TFD, TFF, VIP, LOHS, ROB
    • Gastroenterology, Surgery
    • https://doi.org…8.CD006506.pub3

12. Carroll Self-Rating [scale](English)

    • also denoted as CSRS
    • CSRS
    • Depression, Scoring systems/scales
    • https://doi.org…2/bjp.138.3.194

13. caudal regression syndrome(English)

    • a disorder that impairs the development of the lower (caudal) half of the body. Affected areas can include the lower back and limbs, the genitourinary tract, and the gastrointestinal tract
    • ARM, CSD, DST, LDM, MRI, OSD, SD, USG
    • Urology, Genitals, Spine (or spinal cord), Genetics
    • https://doi.org…055-022-00722-2
    • https://medline…estinal tract .