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The Collaborative International Dictionary
Suctorian

Suctorian \Suc*to"ri*an\, n.

  1. (Zo["o]l.) A cartilaginous fish with a mouth adapted for suction, as the lampery.

  2. (Zo["o]l.) One of the Suctoria.

Wiktionary
suctorian

n. A protist of the subclass Suctoria in the class ''(taxlink Phyllopharyngea class noshow=1)''; a predatory sessile ciliate.