| Term | Definition / Meaning / Stand for |
| CTX |
C-Terminal Telopeptide |
| CAS |
CRISPR-Associated System |
| CXCR |
CXC Chemokine Receptor |
| CTR |
Calcitonin Receptor |
| CHP |
Calcium Hydroxyapatite |
| CIP |
Calf Intestinal Phosphatase |
| CR |
Caloric Restriction |
| CB2R |
Cannabinoid Receptor 2 |
| CZA |
Carbohydrate-Activated Zone |
| C |
Carbon |
| CIS |
Carcinoma in Situ |
| CM |
Cardiac Muscle |
| CO |
Cardiac Output |
| CL |
Cardiolipin |
| CAT |
Catalase |
| CTNNB1 |
Catenin Beta 1 |
| CAV1 |
Caveolin-1 |
| CAM |
Cell Adhesion Molecule |
| CZT1 |
Cell Cycle Regulatory Protein |
| CPI |
Cell Proliferation Index |
| CZ |
Cell Zone |
| CPH |
Cellular Protein Homeostasis |
| CR |
Cellular Respiration |
| CPC |
Cerebrospinal Fluid Pathway |
| CXCL |
Chemokine (CXC motif) Ligand |
| CCL |
Chemokine Ligand |
| CXC |
Chemokine Motif CXC |
| CCR |
Chemokine Receptor |
| CAR |
Chimeric Antigen Receptor |
| CSA |
Chromosomal Structure Alteration |
| CSP |
Circadian Stimulus Processing |
| CTC |
Circulating Tumor Cells |
| CLP1 |
Cleavage and Polyadenylation Factor 1 |
| CD |
Cluster of Differentiation |
| CoA |
Coenzyme A |
| CXL |
Collagen Crosslinking |
| COL1A1 |
Collagen Type I Alpha 1 Chain |
| COL2A1 |
Collagen Type II Alpha 1 Chain |
| COL3A1 |
Collagen Type III Alpha 1 Chain |
| C3G |
Complement 3 Glomerulopathy |
| C1R |
Complement Component 1R |
| C1q |
Complement Component 1q |
| C3 |
Complement Component 3 |
| C3b |
Complement Component 3b |
| C4d |
Complement Component 4d |
| C5a |
Complement Component 5a |
| C9 |
Complement Component 9 |
| CUB |
Complement Control Protein |
| CLP |
Complement Lectin Pathway |
| CT |
Computed Tomography |
| CAD |
Coronary Artery Disease |
| CC |
Corpus Callosum |
| CHX |
Cycloheximide |
| CYLD |
Cylindromatosis Gene |
| CMP |
Cytidine Monophosphate |
| CYP1A1 |
Cytochrome P450 Family 1 Subfamily A Member 1 |
| CYP2D6 |
Cytochrome P450 Family 2 Subfamily D Member 6 |
| CYP21A2 |
Cytochrome P450 Family 21 Subfamily A Member 2 |
| CYP3A4 |
Cytochrome P450 Family 3 Subfamily A Member 4 |
| CZT |
Cytokine Zone Transfer |
| CpG |
Cytosine-phosphate-Guanine |
| ChTX |
125I-charybdotoxin |
| CPZ |
14C-chlorpromazine |
| CMNP |
2-chloro-4-methyl-5-nitropyridine |
| CPDB |
2-cyano-2-propyl Dithiobenzoates |
| cAMPS |
3',5'-cyclic Monophosphothioate |
| CDPC |
6-chloro-3,5-diaminopyrazine-2-carboxamide |
| CBTX |
Alpha-cobratoxin |
| CRYAA |
AlphaA-crystallin Protein |
| CENP |
Anti-centromere Protein |