ascidian

Meanings

1. 1
   noun

   a solitary or colonial marine tunicate of the class Ascidiacea, typically having a saclike adult body with an incurrent and an excurrent siphon

   The adult ascidian remained attached to the rock while filtering seawater through its two siphons.

From New Latin Ascidia, the former group name, and -an. Ascidia derives from Greek askidion, 'small wineskin or little bag,' the diminutive of askos, referring to the animal's saclike body.

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