- clonal selection and breeding
- clonal selection theory
- clonal testing
- clonal variety
- clone
- clone backup
- clone bank
- cloned animal
- cloned embryo
- clone form
- clonidine
- clonidine; catapres; catapresan
- cloning
- cloning fidelity
- cloning technology
- cloning vector
- clonorchiasis sinensis
- clopen
- clopen algebra
- clopen set
- clopyralid
- cloransulam-methyl
- Clorinda Matto de Turner
- closable manifold
- closable operator