actinozoan

• Nom désignant une classe de cnidaires marins sessiles comprenant à la fois des polypes solitaires et coloniaux, chez lesquels la phase médusoïde est totalement supprimée.

A noun referring to a class of sessile marine coelenterates that includes both solitary and colonial polyps, in which the medusoid phase is entirely suppressed.

1. Marine polypC2formalscientific

   A sessile marine coelenterate, including solitary and colonial polyps, where the medusoid phase is entirely suppressed.

   Actinozoaire

   • The actinozoan attaches itself to the ocean floor and never becomes a free-swimming medusa.
   • Coral reefs are built by colonies of actinozoans.
   • Unlike jellyfish, the actinozoan lacks a medusoid stage in its life cycle.

   Synonymesanthozoan