noun
spinal cord destruction (fish); ikejime spinal cord method
A 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)
神経締めをすると、魚の鮮度が長持ちする。
Destroying the spinal cord keeps the fish fresh longer.
活け締め is a broader term for killing fish by bleeding or destroying the brain; 神経締め specifically refers to destroying the spinal cord as part of that process.
Compound of 神経 (しんけい, 'nerve') and 締め (じめ, 'killing' or 'finishing'), referring to the destruction of the spinal cord in fish preparation.