che·mo·tax·on·o·my 
(kē′mō-tăk-sŏnə-mē, kĕm′ō-)
(kē′mō-tăk-sŏnə-mē, kĕm′ō-)n.
The classification of organisms based on differences at the biochemical level, as in the amino acid sequences of common proteins.
che′mo·tax′o·nomic (-tăk′sə-nŏmĭk) adj.
che′mo·tax′o·nomi·cal·ly adv.
che′mo·tax·ono·mist n.
- cooperage
- cooperate
- cooperation
- cooperationist
- cooperative
- cooperatively
- cooperativeness
- cooperator
- Cooper pair
- Cooper's hawk
- Cooperstown
- co-opt
- co-optation
- co-optative
- co-option
- co-optive
- co-orbital
- coordinate
- coordinate bond
- coordinated universal time
- coordinately
- coordinateness
- coordinate system
- coordinating conjunction
- coordination