| onychophoran | (n) any of numerous velvety-skinned wormlike carnivorous animals common in tropical forests having characteristics of both arthropods and annelid worms, Syn. velvet worm, peripatus |
| beard worm | (n) slender animal with tentacles and a tubelike outer covering; lives on the deep ocean bottom, Syn. pogonophoran |
| ciliate | (n) a protozoan with a microscopic appendage extending from the surface of the cell, Syn. ciliophoran, ciliated protozoan |
| flagellate | (n) a usually nonphotosynthetic free-living protozoan with whiplike appendages; some are pathogens of humans and other animals, Syn. mastigophoran, mastigophore, flagellated protozoan, flagellate protozoan |
| solenogaster | (n) deep-water wormlike mollusks lacking calcareous plates on the body but having fine slimy spicules on the covering mantle, Syn. aplacophoran |
| thyreophora | (n) armored dinosaurs: stegosaurs and ankylosaurs, Syn. suborder Thyreophora, thyreophoran |
