Meanings
nounhydractinian (plural hydractinians)
plural hydractinians
- biologyA marine hydroid of the genus Hydractinia or a closely-related genus
Origin
From taxonomic name Hydractinia + -an.
Full word history & related roots →Cite this entry
APA
hydractinian. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/hydractinian
MLA
“hydractinian.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/hydractinian. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “hydractinian,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/hydractinian.
Source: hydractinian on Wiktionary, CC BY-SA 4.0.