| CL | having an outer covering especially of thin metal |
|---|---|
| CL | a protective covering that protects the outside of a building |
| CL | a group of biological taxa or species that share features inherited from a common ancestor |
| CL | a system of biological taxonomy based on the quantitative analysis of comparative data and used to reconstruct trees summarizing the (assumed) phylogenetic relations and evolutionary history of groups of organisms |
| CL | a flattened stem resembling and functioning as a leaf |
| CL | a tree diagram used to illustrate phylogenetic relationships |
| CL | type genus of Cladoniaceae |
| CL | an erect grayish branching lichen of Arctic and even some north temperate regions constituting the chief food for reindeer and caribou and sometimes being eaten by humans |
| CL | a family of lichens |
| CL | a flattened stem resembling and functioning as a leaf |
| CL | one of two genera of stilts |
| CL | web-footed Australian stilt with reddish-brown pectoral markings |