HYDROID

Pronunciation (US):

(GB):

 Dictionary entry overview: What does hydroid mean? 

• HYDROID (noun)
  The noun HYDROID has 1 sense:

1. colonial coelenterates having the polyp phase dominant

  Familiarity information: HYDROID used as a noun is very rare.

 Dictionary entry details 

• HYDROID (noun)

Sense 1

Meaning:

Colonial coelenterates having the polyp phase dominant

Classified under:

Nouns denoting animals

Synonyms:

hydroid; hydrozoan

Hypernyms ("hydroid" is a kind of...):

cnidarian; coelenterate (radially symmetrical animals having saclike bodies with only one opening and tentacles with stinging structures; they occur in polyp and medusa forms)

Hyponyms (each of the following is a kind of "hydroid"):

planula (the flat ciliated free-swimming larva of hydrozoan coelenterates)

hydra (small tubular solitary freshwater hydrozoan polyp)

siphonophore (a floating or swimming oceanic colony of polyps often transparent or showily colored)

sertularian (feathery colony of long-branched stems bearing stalkless paired polyps)

Holonyms ("hydroid" is a member of...):

class Hydrozoa; Hydrozoa (coelenterates typically having alternation of generations; hydroid phase is usually colonial giving rise to the medusoid phase by budding: hydras and jellyfishes)