The Collaborative International Dictionary
Syncitia
Syncytium \Syn*cy"ti*um\, n.; pl. Syncitia. [NL., from Gr. ? together + ? a hollow vessel.]
(Biol.) 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.
(Zo["o]l.) The ectoderm of a sponge.