pinacoderm
Noun. The outer most layer of cells (''pinacocytes'') in the phylum Porifera (sponges), equivalent to the epidermis, and characterized as an epithelial layer of flattened cells.This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.
This entry was last updated on RefTopia from its source on 3/20/2012.