Dictionary.net

• A modified arrangement of Anthozoan mesenteries containing more macromesenteries than the normal microtype.

1920 - A dictionary of scientific terms.
By Henderson, I. F.; Henderson, W. D.

• [Greek] A modified arrangement of mesenteries containing more macromesenteries than normal microtype, in Anthozoa.

1920 - A dictionary of scientific terms (6th edition)
By J.H. Kenneth