デッドスペース

noun

hard-to-use space; wasted space

Refers to awkward or unusable areas in a room, apartment, or building layout, such as narrow corners or oddly shaped nooks. Common in real estate and interior design contexts.

• この部屋へやはデッドスペースが多おおくて家か具ぐの配はい置ちが難むずかしい。

  This room has a lot of dead space, making it hard to arrange furniture.

noun

dead space (military)

Military term for an area that cannot be effectively covered by direct fire or observation, such as behind a ridge or inside a defilade.

• 敵てきの砲ほう撃げきはデッドスペースに入はいり、我わが軍ぐんに届とどかなかった。

  The enemy artillery fire fell into dead space and did not reach our troops.

noun

respiratory dead space

Medical term for the portion of the respiratory tract where no gas exchange occurs, such as the trachea and bronchi. Also called 死腔.

See also: 死腔

• 解かい剖ぼう学がく的てきデッドスペースは気き道どうの容よう積せきの一いち部ぶを占しめる。

  Anatomical dead space occupies part of the airway volume.