CLASS ECHINOIDEA

 Dictionary entry overview: What does class Echinoidea mean? 

• CLASS ECHINOIDEA (noun)
  The noun CLASS ECHINOIDEA has 1 sense:

1. sea urchins and sand dollars

  Familiarity information: CLASS ECHINOIDEA used as a noun is very rare.

 Dictionary entry details 

• CLASS ECHINOIDEA (noun)

Meaning:

Sea urchins and sand dollars

Classified under:

Nouns denoting animals

Synonyms:

class Echinoidea; Echinoidea

Hypernyms ("class Echinoidea" is a kind of...):

class ((biology) a taxonomic group containing one or more orders)

Meronyms (members of "class Echinoidea"):

sea urchin (shallow-water echinoderms having soft bodies enclosed in thin spiny globular shells)

Exocycloida; order Exocycloida (flat sea urchins)

order Spatangoida; Spatangoida (heart-shaped sea urchins)

Holonyms ("class Echinoidea" is a member of...):

Echinodermata; phylum Echinodermata (radially symmetrical marine invertebrates including e.g. starfish and sea urchins and sea cucumbers)