any protozoan of the ciliate order Suctorida, which includes both freshwater and saltwater organisms. Suctorians are extremely widely distributed in ... [2 related articles] Found on http://www.britannica.com/eb/a-z/s/180
Suc·to'ri·an noun 1. (Zoology) A cartilaginous fish with a mouth adapted for suction, as the lampery. 2. (Zoology) One of the Suctoria. Found on http://www.encyclo.co.uk/webster/S/232
a suctorial animal. · a protozoan of the class or order Suctoria, which live, as adults, attached by a stalk to the substrate and feed by means of long, suctorial tentacles. Found on https://www.infoplease.com/dictionary/suctorian