Ascidian

//əˈsɪdi.ən// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Any member of the class Ascidiacea (the sea squirts)
  2. 2
    minute sedentary marine invertebrate having a saclike body with siphons through which water enters and leaves wordnet

Example

More examples

"Castle observed and studied the phenomenon of self-sterility in an Ascidian, Ciona intestinalis, which is hermaphroditic."

Etymology

From New Latin Ascidia + -an, from Ancient Greek ἀσκίδιον (askídion, “wineskin, leather bag”).

Related phrases

sea squirt

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.