clas - colo
- clasp
- clasp torsion
- clasp-knife reflex
- class II biological safety cabinet
- classic cesarean section
- classic conditioning
- classic tomography
- classic typhus
- classification
- classification of anesthesia patients
- classification of caries
- classification of malocclusion
- classification schemes
- claudication
- claustra
- claustrophobia
- claustrum
- clavicle
- clavicular
- clavicular notch
- clavus
- claw-type traction frame
- clawfoot
- clawhand
- clean-catch specimen
- cleansing enema
- clear cell
- clear cell carcinoma
- clear cell carcinoma of the kidney
- clear-liquid diet
- clearance
- clearing agent
- clearing test
- cleavage
- cleavage cavity
- cleavage cell
- cleavage fracture
- cleavage line
- cleavage nucleus
- cleavage plane
