dead space

(redirected from alveolar dead space)
Also found in: Thesaurus, Medical, Legal, Encyclopedia.

dead space

1. An area within the maximum range of a weapon, radar, or observer, which cannot be covered by fire or observation from a particular position because of intervening obstacles, the nature of the ground, or the characteristics of the trajectory, or the limitations of the pointing capabilities of the weapon.
2. An area or zone which is within range of a radio transmitter, but in which a signal is not received.
3. The volume of space above and around a gun or guided missile system into which it cannot fire because of mechanical or electronic limitations.
Mentioned in ?
References in periodicals archive ?
Mechanical obstruction leading to alveolar dead space as well as uncommon acute inflammatory reactions have been reported (5-7).
Among the ventilation-perfusion disturbances present, increased alveolar dead space develops.
Physiological dead space is defined as that part of the tidal volume that does not participate in gas exchange, a mixture of anatomic dead space in the conducting airways and pathologic alveolar dead space resulting from lung disease.