zoarialhttp://www.oed.com/dictionary/zoarial_adj%3Ftab%3Dmeaning_and_usezoarial, adj.
First published 1921; not fully revised

zoarialadjective

Zoology.
  1. 1896–
    Pertaining to or constituting a zoarium.
    Stressed as zoˈarial.
    1. 1896
      In typical Diastopora the zoarium consists of two layers of zoœcia, one on each side of the zoarial lamina.
      J. W. Gregory, Catalogue Fossil Bryozoa Introduction 16

Originally published as part of the entry for zoarium, n.

zoarium, n. was first published in 1921; not fully revised.