There are multiple definitions:

1. cystic fibrosis(English)

   • genetic disorder that affects mostly the lungs, but also the pancreas, liver, kidneys, and intestine. Affects all secretory epithelia, including the eye, and belongs to the group of ocular surface epithelial diseases, termed keratoconjunctivitis sicca or dry eye syndrome
   • CFTR, GSNO, KCS, NPD, ABP
   • Pulmonology, Ophthalmology, Genetics, Allergy, Pancreas
   • https://doi.org…6/NEJMra2216474
   • https://doi.org…hem.2022.782608

2. coupling factor(English)

3. citrovorum factor(English)

   • =folinic acid

4. carbon fiber(English)

   • AFO, MIPAV, PD, SLS, CFR-PEEK, CFR, FE, PEEK, VMS
   • Materials science, Dentistry, Prosthetics
   • https://doi.org…42.2022.2032681

5. count fingers(English)

   • HM

6. cardiac fibroblast(English)

   • CM
   • Cardiology, Cell biology, Molecular biology

7. characteristic frequency(English)

   • tone frequency of greatest sensitivity for a given ANF
   • AMPA, ANF, Cm, EPSC, IHC, OHC, PTC, TEN
   • Auditory system, Electrophysiology, Audiology
   • https://doi.org/10.1113/JP279189
   • https://doi.org…2/jn.00677.2018
   • https://doi.org…005364000000131

8. conversion factor(English)

   • Bioengineering, Biochemistry, Biophysics, Hematology

9. complementary feeding(English)

   • Neonatal situation, Nutrition
   • https://doi.org…/ijerph13111160

10. contraction frequency(English)

    • number of contractions/min, e.g. of isolated colonic longitudinal smooth muscle strips
    • CLSM, IBS, MI, NMS, TXYF
    • Myocyte / muscle, Gastroenterology, Experimental animal, Stress (test)
    • https://doi.org…jg.v21.i10.2912

11. conventional foot(English)

    • refers to ESAR type. Individuals with trans-tibial amputation show a greater peak prosthetic ankle power (push- off) when using energy storing and returning prosthetic feet as compared to solid-ankle cushion-heel feet
    • NF, SACH, ESAR
    • Prosthetics, Rehabilitation
    • https://doi.org…ost.2018.06.022

12. continuous flow(English)

    • refers to left ventricular assist devices as bridge to transplant
    • HTX, LVAD, UNOS
    • Cardiology, Surgery, Transplantation
    • https://doi.org…000000000002105

13. collaborative filtering(English)

    • employs the known preferences of a group of users to make recommendations or predictions of the unknown preferences for other users
    • CTD, DAG, DMN, DO, FLDMN, HMDB, MEDIC, MeSH, RWR, STITCH
    • Medical informatics, Big data
    • https://doi.org…2859-019-3127-4
    • https://doi.org…155/2009/421425

14. Colocasia esculenta flower(English)

    • CL, SM
    • Nutrition
    • https://doi.org…1007/BF01091966

15. contact force(English)

    • used to guide ablation
    • AF, ECG, PV, PVAI
    • Cardiology, Electrophysiology
    • https://doi.org…ircj.CJ-17-1205

16. carbon footprint(English)

    • CIED, CRT-D, EPA, GHG, ILR, RM
    • Environment
    • https://doi.org…adv.2023.100286

17. cocoa flavanol(English)

    • intake improves endothelial function in patients with cardiovascular risk factors and disease
    • FMD, PWV
    • Endothelium, Risk factor, Cardiology
    • https://doi.org…007114515002822

18. coprofagie(Dutch)

    • coprophagia
    • Veterinary medicine, Behavior(al science)
    • https://doi.org…0/vetsci9120686

19. consumption frequency(English)

    • BFBS, CH, DM1, EOC, FICF, QFFQ
    • Diabetes, Endocrinology, Diet
    • https://doi.org…155/2014/976508

20. clinical factor(English)

    • may refer to radiomics
    • HCC, MVI
    • Liver disease, Medical imaging, Oncology, Microcirculation
    • https://doi.org…0330-018-5985-y