Definitions for "Syncytium"
Tissue in which the cell or partition walls are wholly wanting and the cell bodies fused together, so that the tissue consists of a continuous mass of protoplasm in which nuclei are imbedded, as in ordinary striped muscle.
Greek syn = with, and kytos = cell, hence a multinucleate mass of protoplasm, formed by the merging of cells.
syn = together + kytos = hollow vessel; a single multinucleated mass of protoplasm with many nuclei.
Keywords:  ectoderm, sponge
The ectoderm of a sponge.