乾かん燥そう腐ふ朽きゅう

noun

dry rot

Technical term for decay of timber caused by certain fungi that can destroy wood in relatively dry conditions.

• この古ふるい家いえの柱はしらは乾かん燥そう腐ふ朽きゅうでぼろぼろになっている。

  The pillars of this old house have been ruined by dry rot.