zoarium

zo·ar·i·um

 (zō-âr′ē-əm)
n. pl. zo·ar·i·ums also zo·ar·i·a (-ē-ə)
The aggregate of zooids that make up a colonial organism such as a bryozoan.

zo·ar′i·al (-ē-əl) adj.

zoarium

(ˌzəʊˈɛərɪəm)
n
(Zoology) a colony of zooids