æk.tɪ.noʊ.ˈzoʊ.ə

Definitions

1. noun

a subkingdom of sponges characterized by the presence of actin filaments in the skeleton

“The researcher studied the unique characteristics of the actinozoa in the ocean”

2. noun

a type of sponge in which the skeleton is composed of actin filaments

“The actinozoa are commonly found in coral reefs”