from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun biology Any of many cup-shaped structures in the cell
membranesof eukaryotic cellswhere vesiclesdock in the process of vesicle fusionand secretion.
Sorry, no etymologies found.
He discovered a new cellular structure -- the porosome -- as well as his elucidation of the general molecular mechanism underlying cell secretion and membrane fusion.