欠けん缺けつ

noun

lacuna; gap; deficiency

Formal term for a missing part, gap, or deficiency, often used in legal, academic, or technical contexts. Not an everyday word.

• この契けい約やく書しょには重じゅう要ような欠けん缺けつがある。

  There is an important gap in this contract.

• 法ほうの欠けん缺けつを補おぎなうために新あらたな規き則そくが設もうけられた。

  New regulations were established to fill the lacuna in the law.