- Chemical test
- Chemical transformation
- Chemical vapor deposition
- Chemical vapour deposition
- Chemically defined medium
- Chemically inert
- Cheminformatics
- Chemiosmosis
- Chemisorption
- Chemistry
- Chemoattractant
- Chemodectoma
- Chemoembolization
- Chemogenetics
- Chemoimmunotherapy
- Chemokine receptors
- Chemokines
- Chemokinesis
- Chemolithotrophs
- Chemometrics
- Chemoprevention
- Chemoprophylaxis
- Chemoprotective agents
- Chemoproteomics
- Chemoradiation
- Chemoreceptor trigger zone
- Chemoreceptors
- Chemorepellent
- Chemoselectivity
- Chemosensation
- Chemosensitivity
- Chemosis
- Chemosynthesis
- Chemotactic
- Chemotactic factors
- Chemotaxin
- Chemotaxis
- Chemotaxis assay
- Chemotaxonomy
- Chemotherapeutic agents
- Chemotherapy
- Chemotherapy agent
- Chemotherapy induced nausea and vomiting
- Chemotherapy regimens
- Chemotherapy-induced nausea and vomiting
- Chemotherapy-induced peripheral neuropathy
- Chemotypes
- Chenodeoxycholic acid
- Chenopodium album
- Chenopodium ambrosioides
- Chenopodium quinoa
- Chenpi
- Cherry angiomas
- Cherry juice
- Cherry red spot
- Cherry-red spot
- Cherubism
- Chervil
- Chest
- Chest drainage
- Chest hair
- Chest injury
- Chest pain
- Chest physiotherapy
- Chest radiograph
- Chest trauma
- Chest tube
- Chest wall
- Chest wall oscillation
- Chest x-ray
- Chewing
- Chewing tobacco
- Cheyne-Stokes breathing
- Cheyne-Stokes respiration
- Chi square test
- Chi3l1
- Chia
- Chia seeds
- Chiasm
- Chiasmal syndrome
- Chiasmata
- Chiasmatic cistern
- Chicha
- Chicken fat
- Chicken meat
- Chicken soup
- Chickenpox
- Chickenpox vaccine
- Chickpeas
- Chicory
- Chief complaint
- Chiggers
- Chikungunya
- Chikungunya virus
- Chilaiditi syndrome
- Chilblain
- Chilblains
- Child Syndrome
- Child abduction
- Child and Adolescent Mental Health Services
- Child and family services
- Child behavior checklist
- Child development
- Child guidance
- Child life specialist
- Child mortality
- Child obesity
- Child protection
- Child psychology
- Child-Pugh score
- Childbirth
- Childhood absence epilepsy
- Childhood amnesia
- Childhood arthritis
- Childhood autism
- Childhood blindness
- Childhood cancer
- Childhood depression
- Childhood diseases
- Childhood disintegrative disorder
- Childhood interstitial lung disease
- Childhood leukemia
- Childhood maltreatment
- Childhood mortality
- Childhood obesity
- Childhood trauma
- Childlessness
- Children of alcoholics
- Children with disabilities
- Children's Depression Inventory
- Children's hospices
- Chili pepper
- Chills
- Chimaerism
- Chimera
- Chimeric antibody
- Chimeric antigen receptor
- Chimeric antigen receptor T-cell
- Chimeric gene
- Chimeric proteins
- Chimerin
- Chin
- Chinese Classification of Mental Disorders
- Chinese finger trap
- Chinese herbal medicine
- Chinese herbs
- Chinese patent medicine
- Chip sequencing
- Chip-on-chip
- Chiral chromatography