8 Words That Are Older Than You Think
ciliate cil·i·ate (sĭl'ē-ĭt, -āt')
Any of various protozoans of the class Ciliata. adj.
any member of the protozoan phylum Ciliophora, of which there are some 8,000 species; ciliates are generally considered the most evolved and complex of protozoans. Ciliates are single-celled organisms that, at some stage in their life cycle, possess cilia, short hairlike organelles used for locomotion and food gathering