神しん経けい締じめしんけいじめMeanings1nounspinal cord destruction (fish); ikejime spinal cord methodA fish-killing technique where the spinal cord is destroyed to preserve freshness; related to 活け締め (いけじめ).See also: 活け締め (いけじめ)神しん経けい締じめをすると、魚さかなの鮮せん度ど