order_spatangoida
1. [ noun ] (biology,zoology) heart-shaped sea urchins
Synonyms: Spatangoida
Related terms: animal_order Echinoidea heart_urchin
Similar spelling:   order_Araneida
  order_Phalangida
  order_Ganoidei
  order_Batoidei
  order_Plantaginales
  order_Sapindales
  order_Pandanales
  order_Marsupialia
  order_Lechanorales
  order_Juglandales
  order_Isoptera
  order_Actinomyxidia
  order_Trogoniformes
  order_Synentognathi
  order_Loricata