intervertebral disc

synonym: spinal disc
https://doi.org/10.1351/goldbook.11720
Flat circular structure, consisting of a tough, fibrous exterior and a gelatinous core, interposed between adjacent vertebrae.
Source:
PAC, 2015, 87, 841. (IUPAC Glossary of terms used in neurotoxicology (IUPAC Recommendations 2015)) on page 862 [Terms] [Paper]