nematosome

plural nematosomes

1. A multicellular motile body found in the gastrovascular cavity of the sea anemone Nematostella
2. A particular organelle found in certain neurons, consisting of threadlike structures.

   1 more example

   A distinctive cytoplasmic inclusion consisting of a convoluted network of electron-opaque strands embedded in a less dense matrix was identified in the neurons, but not in the supporting cells, of rat sympathetic ganglia . This ball-like structure, designated "nematosome," measures - 0 .9 μ and lacks a limiting membrane.

   1970 April 28, Mary A. Grillo, “Cytoplasmic inclusions resembling nucleoli in sympathetic neurons of adult rats”, in Journal of Cell Biology