| CLAS | form class |
|---|---|
| CLAS | marine and freshwater eukaryotic algae: diatoms |
| CLAS | comprising seed plants that produce an embryo with paired cotyledons and net-veined leaves |
| CLAS | comprising seed plants that produce an embryo with paired cotyledons and net-veined leaves |
| CLAS | arthropods having the body composed of numerous double somites each with two pairs of legs: millipedes |
| CLAS | sea urchins and sand dollars |
| CLAS | horsetails and related forms |
| CLAS | coextensive with the division Euglenophyta |
| CLAS | category used in some classifications: coextensive with division Eumycota |
| CLAS | feelings of envy and resentment of one social or economic class for toward another |
| CLAS | an acquaintance that you go to school with |
| CLAS | ferns |