- Cervical spondylotic myelopathy
- Cervical stenosis
- Cervical vertebrae
- Cervicitis
- Cervicogenic headache
- Cervicography
- Cervix
- Cervix uteri
- Cesarean section
- Cesium
- Cesium 137
- Cesium chloride
- Cestoda
- Cestodes
- Cetaphil
- Ceteareth
- Cethromycin
- Cetilistat
- Cetirizine
- Cetostearyl alcohol
- Cetrimide agar
- Cetrimonium
- Cetrimonium bromide
- Cetrorelix
- Cetuximab
- Cetyl alcohol
- Cetyl palmitate
- Cetylpyridinium chloride
- Cetyltrimethylammonium bromide
- Cevimeline
- Cgmp-dependent protein kinase
- ChAdOx1
- ChEMBL
- ChIP-on-chip
- Chaetomiaceae
- Chafing
- Chagas cardiomyopathy
- Chagas disease
- Chain of survival
- Chain reactions
- Chain scission
- Chain smoking
- Chain termination
- Chalazion
- Chalcone
- Chalcone isomerase
- Chalcone synthase
- Chalepensin
- Challenging behaviour
- Chamazulene
- Chamomile
- Chanarin-Dorfman syndrome
- Chance fracture
- Chancre
- Chancroid
- Change blindness
- Change of direction
- Channel blockers
- Channel opener
- Channel protein
- Channelopathies
- Channelopathy
- Channelrhodopsin
- Chaotropic agents
- Chaparral
- Chaperone proteins
- Chaperone-assisted selective autophagy
- Chaperone-mediated autophagy
- Chaperones
- Chaperonin 60
- Chaperonins
- Char syndrome
- Characteristic x-rays
- Charantin
- Charas
- Charcoal
- Charcot
- Charcot foot
- Charcot joints
- Charcot's triad
- Charcot-Leyden crystals
- Charcot-Marie-Tooth disease
- Charge
- Charge syndrome
- Charged particles
- Charles Bonnet syndrome
- Charlie Gard case
- Charlson Comorbidity Index
- Chavibetol
- Chavicol
- Chebulagic acid
- Chebulinic acid
- Checklist for Autism in Toddlers
- Checklist for autism in toddlers
- Checkpoint inhibitors
- Chediak-Higashi syndrome
- Cheek
- Cheek augmentation
- Cheek reconstruction
- Cheese
- Cheilitis
- Cheiloplasty
- Cheilosis
- Chelating agents
- Chelation
- Chelation therapy
- Chelerythrine
- Chelex 100
- Chelidonine
- Chelidonium majus
- Chemerin
- Chemesthesis
- Chemical burns
- Chemical castration
- Chemical change
- Chemical chaperones
- Chemical composition
- Chemical compounds
- Chemical contamination
- Chemical decomposition
- Chemical defense
- Chemical depilatory
- Chemical digestion
- Chemical ecology
- Chemical equilibrium
- Chemical genetics
- Chemical imaging
- Chemical ionization
- Chemical kinetics
- Chemical library
- Chemical modification
- Chemical peels
- Chemical pneumonitis
- Chemical potential
- Chemical process
- Chemical protective clothing
- Chemical purity
- Chemical reaction
- Chemical reaction rate
- Chemical safety assessment
- Chemical sensors
- Chemical separation
- Chemical similarity
- Chemical space
- Chemical specificity
- Chemical stability
- Chemical state
- Chemical structure
- Chemical synapse
- Chemical synthesis