There are multiple definitions:

1. chronologic age(English)

   • DA, MA
   • Aging

2. cardiac arrest(English)

   • VF, eWLST
   • Cardiology, Emergency medicine
   • https://doi.org…ion.2019.02.031

3. cytosine arabinoside(English)

   • Biochemistry

4. croup-associated virus(English)

   • Virology, Thyroid and parathyroid

5. carcinoma(English)

   • aka cancer, malignant neoplasm
   • Oncology

6. classification accuracy(English)

   • Classification

7. contact area(English)

   • AP, DTI, PPCS, PPG, PVMS

8. contrast agent(English)

   • dox, PLA
   • Medical imaging

9. celiac axis(English)

   • PV, SMA, SMV
   • Anatomy
   • https://doi.org…000000000003468

10. cardiac amyloidosis(English)

    • Cardiology
    • https://doi.org…cmg.2019.10.011

11. conversation analytic(English)

    • on the practice of requesting. Definitions of requests vary, but typically they are utterances designed by a speaker to ask something of the recipient, such as ‘Can you pass me the salt?‘. Requesting that another person does something (or allows something to be done to them) is a delicate interactional matter, because the person making the request impinges on the autonomy of the recipient by asking that they carry out an action of the requester's volition rather than of their own
    • PLWD
    • Dementia, Communication
    • https://doi.org…med.2020.113188

12. childhood adversity(English)

    • may increase the risk for later developing of personality disorder (PD)
    • PD
    • Pediatrics, Psychology
    • https://doi.org…0654-017-0264-9

13. coracoacromial(English)

    • HH, RSA
    • Anatomy
    • https://doi.org…int.2020.09.011

14. chromosomal aberration [test](English)

    • in vitro genotoxicity test to discriminate rodent carcinogens and non-carcinogens
    • MLA, MN, TFT
    • Toxicology, Epigenetics
    • https://doi.org…tox.2005.02.004

15. cornu ammonis(Latin)

    • hippocampal regions are often considered to contain a single pyramidal cell layer
    • Brain (dys)function, Anatomy, Synapse
    • https://doi.org…nana.2017.00083

16. cerebral angiostrongyliasis(English)

    • an acute disease that affects the central nervous system; aka eosinophilic meningitis or neuroangiostrongyliasis
    • CSF, CNS
    • Brain (dys)function, Infection
    • https://doi.org…0074-0276140023

17. calbindin(English)

    • a calcium-binding protein that acts as an endogenous calcium buffer
    • PA, PrV, SC, SpC
    • Calcium, Neurology

18. categorical agreement(English)

    • can be assessed using the species-specific clinical breakpoints
    • CBP, CLSI
    • Biochemistry, Standards
    • https://doi.org…bio.2013.05.019

19. congenital amusia(English)

    • failure to recognize common tunes from their culture, not hearing when notes are 'out of tune' and sometimes reporting that music sounds like a 'din' or 'banging'. The core deficit appears to be a problem in discriminating pitch direction, a building block for the representation of melodic contour. Familial studies suggest the disorder is heritable and associated with structural differences in temporal and frontal cortices. The disorder provides a window onto the neuro-cognitive architecture of musical processing, and the possible etiologies of disordered development
    • Congenital disorders, Brain (dys)function
    • https://doi.org…onb.2008.07.008

20. corrected age(English)

    • GA, HMF, VLBW
    • Pregnancy, Neonatal situation
    • https://pubmed.…h.gov/23461996/

21. corneal astigmatism(English)

    • OCT, RNFL
    • Ophthalmology
    • https://doi.org…55/2021/3462004

22. catheter ablation(English)

    • LAA, LAAC, AFCA, AF, AGT, tSNP
    • Cardiology, Surgery, Electrophysiology
    • https://doi.org…europace/euv070
    • https://doi.org…470320315594315

23. cellulose acetate(English)

    • nanofibrous mats are prepared by electrospinning using silk sericin mixed with different proportions of polycaprolactone (PCL) and cellulose acetate loaded with ferulic acid (FA). Such nanofibers are an emerging and versatile nanotechnology-based drug-delivery system with unique wound-healing properties
    • FA, PCL
    • Nano-sciences, Wound care, Pharmacology / pharmaceutics
    • https://doi.org…3390/ph15030302

24. crotapotin(English)

    • the acidic counterpart of crotoxin PLA(2)
    • Lys49, PLA(2), BPB, RB, NBSF, NPSC
    • Toxicology, Pharmacology / pharmaceutics
    • https://doi.org…cca.2004.07.010

25. chromatic aberration(English)

    • EDoF, HOA, IOL, SA, RCC, RICC, RPD
    • Ophthalmology, Genetics, Environment
    • https://doi.org…000000000000296
    • https://doi.org…tox.2015.11.007

26. Centella asiatica [ethanol extract](English)

    • alleviates dextran sulfate sodium-induced colitis
    • DAI, DSS, HPLC, UC
    • Gastroenterology, Therapeutic approaches
    • https://doi.org…jep.2020.113445

27. carbohydrate antigen(English)

    • CEA, IPMN
    • Oncology, Pancreas, Cytometry / cytology
    • https://doi.org…0/ijms222312839
    • https://doi.org…598-020-65720-8

28. Caucasian American(English)

    • AA, CIN, HPV, HR-HPV, RDLA
    • Ethnicity
    • https://doi.org…47/IJWH.S347546

29. cluster analysis(English)

    • refers e.g. to multiple obesogenic risk factors
    • PA
    • Adiposity, Lifestyle
    • https://doi.org…/1479-5868-11-4

30. cerebral autoregulation(English)

    • the process of cerebral vessels maintaining cerebral blood flow (CBF) fairly constantly over a wide range of arterial blood pressures
    • CBF
    • Hemodynamics, Regulation / control, Brain (dys)function
    • https://doi.org…ped.2022.929117

31. clinically-applied(English)

    • refers to multiple-choice items
    • MC, TSC
    • Education
    • https://doi.org/10.1002/ase.1623

32. cholic acid(English)

    • CYP7A1, CDCA, DHCA, THCA
    • Biliary tract
    • https://doi.org…res.2020.05.001

33. Charollais x Awassi(English)

    • RA
    • Veterinary medicine, Genetics, Tropical medicine
    • https://doi.org…1250-007-9007-3

34. cerebral autoregulation(English)

    • acute cerebral spinal fluid drainage reduces mean intracranial pressure, and results in vasoconstriction which can be detected through the vasoconstriction index (VCI)
    • CPP, CSF, EVD, ICP, NIC, NICU, VCI, VDI
    • Hemodynamics, Regulation / control, Brain (dys)function, Critical Care, Monitoring
    • https://doi.org…2028-018-0651-4

35. cicatricial alopecia(English)

    • AA, AGA, LA, TA
    • Dermatology
    • https://doi.org…eth.2022.10.005

36. cancer antigen(English)

    • refers to deep infiltrating endometriosis
    • CA-125, DIE, IL-6
    • Oncology, Immunology, Biomarker
    • https://doi.org…651858.CD012179

37. catecholamine(English)

    • essential biogenic amine that is present in extremely small amounts in human body as neurotransmitter or hormone. An endogenous compound that is synthesized in the brain, the adrenal medulla, and by some sympathetic nerve fibers. Catecholamine is the name of a group of compounds that contain a catechol nucleus and an amine group. Examples are dopamine, norepinephrine, and epinephrine (aka adrenalin), and non-mammalian compounds such as octopamine
    • EPI, NE
    • Kidney and adrenals, Hormone
    • https://doi.org…24315-2.00211-6

38. companion animal(English)

    • AAD, AM, AMU, VTH
    • Veterinary medicine, Microbiology
    • https://doi.org…598-023-44485-w

39. conus arteriosus(Latin)

    • ACN, CM, DRA, EF, GP, ICNS, NCC, RSPV, RSVC, SAN, SIF, TH
    • Cardiology, Anatomy
    • https://doi.org…390/jcdd8110149

40. correspondence analysis(English)

    • a projection of the points onto axes that minimize residual variation, but this is done in the space defined by the chi-squared distances among points
    • IBR, MDS, PCA, PCO, PCoA, PERMANOVA
    • Statistics, Environment, Pollution and health
    • https://doi.org…pol.2025.126045