Any of various aquatic protozoans of the subclass Suctoria that have a free-swimming ciliated immature form and a sessile, stalked adult form that lacks cilia and feeds by means of suctorial tentacles.
Origin of suctorianFrom New Latin S&umacron;ct&omacron;ria, class name, from neuter pl. of s&umacron;ct&omacron;rius, suctorial; see suctorial.
- A protist of the subclass Suctoria in the class Phyllopharyngea; a predatory sessile ciliate.
From Suctoria +"Ž -an.