China 
Africa 
- Caplan's syndrome
- Capn2
- Capnocytophaga
- Capnocytophaga canimorsus
- Capnograph
- Capnography
- Capnometer
- Capnometry
- Capnophiles
- Capox
- Capparis spinosa
- Capping enzyme
- Capreomycin
- Caprolactone
- Caprylic acid
- Capsaicin
- Capsaicinoids
- Capsanthin
- Capsazepine
- Capsella bursa-pastoris
- Capsicum annuum
- Capsid protein
- Capsids
- Capsinoids
- Capsomere
- Capsorubin
- Capsular contracture
- Capsule endoscopy
- Capsule of lens
- Capsule of the hip joint
- Capsules
- Capsulitis
- Capsulorhexis
- Capsulotomy
- Captan
- Captivity
- Captopril
- Captopril challenge test
- Caput medusae
- Caput succedaneum
- Capz
- Car accident
- Carasil
- Caraway
- Carbachol
- Carbadox
- Carbamate insecticide
- Carbamate kinase
- Carbamate pesticide
- Carbamate poisoning
- Carbamates
- Carbamazepine
- Carbamic acid
- Carbamide
- Carbamino
- Carbaminohemoglobin
- Carbamoyl phosphate
- Carbamoyl phosphate synthase
- Carbamoyl phosphate synthetase
- Carbamoyl phosphate synthetase I
- Carbanions
- Carbapenem
- Carbapenem antibiotics
- Carbapenem-resistant enterobacteriaceae
- Carbapenemase
- Carbapenemase producing enterobacteriaceae
- Carbaril
- Carbaryl
- Carbazole
- Carbendazim
- Carbenes
- Carbenicillin
- Carbenoxolone
- Carbetocin
- Carbide
- Carbidopa
- Carbidopa levodopa
- Carbimazole
- Carbinoxamine
- Carbocisteine
- Carbocyanine
- Carbodiimide
- Carbofuran
- Carbogen
- Carbohydrase
- Carbohydrate catabolism
- Carbohydrate counting
- Carbohydrate deficient transferrin
- Carbohydrate loading
- Carbohydrate metabolism
- Carbohydrate sulfotransferase
- Carbohydrates
- Carbol fuchsin
- Carbomer
- Carbon 14
- Carbon allotrope
- Carbon atom
- Carbon black
- Carbon composite
- Carbon dioxide
- Carbon dioxide fixation
- Carbon dioxide laser
- Carbon dioxide tension
- Carbon disulfide
- Carbon fibers
- Carbon fibre reinforced polymer
- Carbon fixation
- Carbon footprint
- Carbon monoxide
- Carbon monoxide dehydrogenase
- Carbon monoxide poisoning
- Carbon nanotubes
- Carbon nitride
- Carbon tetrachloride
- Carbon-13 nuclear magnetic resonance
- Carbon-based life
- Carbon-carbon bonds
- Carbonate
- Carbonation
- Carbonic acid
- Carbonic anhydrase
- Carbonic anhydrase inhibitors
- Carbonisation
- Carbonium ion
- Carbonization
- Carbonyl compounds
- Carbonyl reductase
- Carbonyl sulfide
- Carbonylation
- Carboplatin
- Carboprost
- Carborane
- Carboxy group
- Carboxyfluorescein
- Carboxyglutamic acid
- Carboxyhemoglobin
- Carboxyl group
- Carboxylase
- Carboxylate salt
- Carboxylates
- Carboxylation
- Carboxylesterase
- Carboxylesterase 1
- Carboxylic acids
- Carboxymethyl cellulose
- Carboxymethylcellulose
- Carboxypeptidase
- Carboxypeptidase A
- Carboxypeptidase B
- Carboxypeptidase E