A small cavity, cell, or socket-like structure, especially one of the tiny air sacs found in lungs or similar anatomical features.
From Latin 'alveolus,' a diminutive of 'alveus' (belly/hollow); used in anatomy to describe small pocket-like structures.
Each alveola in your lungs is tinier than a grain of sand, yet your 300 million alveolae together create a surface area equivalent to a tennis court—biology's way of proving that small and numerous beats big every time.
Complete word intelligence in one call. Free tier — 50 lookups/day.