| Chronobiology | http://edamontology.org/topic_3070 | Biology | |
| Classification | http://edamontology.org/topic_2230 | Classification | |
| Clinical immunology | http://edamontology.org/topic_3400 | Allergy, clinical immunology and immunotherapeutics. | |
| Clinical informatics | http://edamontology.org/topic_3063 | Medical informatics | |
| Clinical medicine | http://edamontology.org/topic_3303 | Medicine | |
| Clinical studies | http://edamontology.org/topic_3379 | Preclinical and clinical studies | |
| Clinical study | http://edamontology.org/topic_3379 | Preclinical and clinical studies | |
| Clone library | http://edamontology.org/topic_3341 | Clone library | |
| Coding RNA | http://edamontology.org/topic_3512 | Gene transcripts | |
| Coding RNA | http://edamontology.org/topic_0655 | Coding RNA | |
| Codon usage | http://edamontology.org/topic_0203 | Gene expression | |
| Codon usage analysis | http://edamontology.org/topic_0107 | Genetic codes and codon usage | |
| Co-immunoprecipitation | http://edamontology.org/topic_3557 | Protein interaction experiment | |
| Communicable disease | http://edamontology.org/topic_3324 | Infectious disease | |
| Community genomics | http://edamontology.org/topic_3174 | Metagenomics | |
| Comparative genomics | http://edamontology.org/topic_0797 | Comparative genomics | |
| Comparative modeling | http://edamontology.org/topic_2275 | Molecular modelling | |
| Comparative modelling | http://edamontology.org/topic_2275 | Molecular modelling | |
| Comparative transcriptomics | http://edamontology.org/topic_3308 | Transcriptomics | |
| Complementary medicine | http://edamontology.org/topic_3423 | Complementary medicine | |
| Compound libraries and screening | http://edamontology.org/topic_3343 | Compound libraries and screening | |
| Compound library | http://edamontology.org/topic_3343 | Compound libraries and screening | |
| Computational biology | http://edamontology.org/topic_3307 | Computational biology | |
| Computational chemistry | http://edamontology.org/topic_3332 | Computational chemistry | |
| Computational ecology | http://edamontology.org/topic_0610 | Ecology | |
| Computational immunology | http://edamontology.org/topic_0804 | Immunology | |
| Computational pharmacology | http://edamontology.org/topic_0202 | Pharmacology | |
| Computational structural biology | http://edamontology.org/topic_0081 | Structure analysis | |
| Computational toxicology | http://edamontology.org/topic_2840 | Toxicology | |
| Computer graphics | http://edamontology.org/topic_0092 | Data visualisation | |