坐ざ骨こつ神しん経けい痛つうざこつしんけいつうMeanings1nounsciatica; sciatic neuralgiamedicine›Medical term for pain radiating along the sciatic nerve, typically from the lower back down the leg. The glosses 'ischiodynia' and 'ischias' are rare/obsolete medical synonyms.坐ざ骨こつ神しん経けい痛つうの症