hydroid

H4Y4D2R1O1I1D2

noun

Any of many colonial coelenterates that exist mainly as a polyp; a hydrozoan.

Similar
hydrozoan
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Meanings

nounhydroid (plural hydroids)

plural hydroids

  1. Any of many colonial coelenterates that exist mainly as a polyp; a hydrozoan.
adjectivehydroid (not comparable)
  1. not comparableOf or pertaining to such creatures

Synonyms & antonyms

nouncolonial coelenterates having the polyp phase dominant

Similar
hydrozoan
Broader
coelenteratecnidarian
Also see
hydrozoan

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

From hydro- + -oid.

Full word history & related roots →

Rhymes & wordplay

Anagrams

dihydrohydrido
Cite this entry
APA

hydroid. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/hydroid

MLA

“hydroid.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/hydroid. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “hydroid,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/hydroid.

Source: hydroid on Wiktionary, CC BY-SA 4.0.