dead space
noun1
Medicine, Physiology, Sciences The portion of the respiratory tract that is ventilated but not perfused by pulmonary circulation.
2
Broadcasting, Film, Media, Television Picture information that is either masked off or cropped out of viewing area, whether at the top or bottom, or to the sides.
3
Architecture An unusable space.
- Derived terms
- alveolar dead space, anatomical dead space, anatomic dead space, Fowler dead space, physiologic dead space, series dead space