noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The portion of the respiratory tract that is ventilated but not perfused by pulmonary circulation. countable, uncountable
2. 2
   Picture information that is either masked off or cropped out of viewing area, whether at the top or bottom, or to the sides. countable, uncountable

Synonyms

All synonyms

bare space