ganglioside

https://doi.org/10.1351/goldbook.11781
Glycosphingolipid chemically similar to cerebrosides but containing one or more sialic (N-acetylneuraminic or N-glycolylneuraminic) acid residues, found principally in nerve tissue, spleen, and thymus.
Note: Accumulation can be associated with disease. Ganglioside GM1 accumulates in generalized gangliosidosis; GM2 accumulates in Tay–Sachs disease.
Source:
PAC, 2015, 87, 841. (IUPAC Glossary of terms used in neurotoxicology (IUPAC Recommendations 2015)) on page 869 [Terms] [Paper]