air cell
Tiny breathing chamber
An air cell is a small cavity or pocket containing air.
The term appears in biology for spaces in bird eggs (the pocket at the large end that grows as the egg ages), in honeycomb structures of lungs, and in construction for insulating pockets in materials like concrete blocks or window glazing.
The air cell in an egg enlarges as moisture evaporates through the shell.
Microscopic pulmonary chamber
- alveoliLung's gas-exchange chambers
- lungRespiratory chest organ
- respiratoryRelated to breathing organs
- bronchioleSmall lung airway branch
gas exchange · pulmonary · oxygen · membrane · diffusion · surfactant · capillary · epithelium
Empty space within
- chamberEnclosed room or cavity
- pocketFabric compartment in clothing
- voidWithout legal effect
- compartmentEnclosed subdivision of space
hollow · honeycomb · foam · porous · aerogel · insulation · thermal · ventilation
Ability to stay afloat
- buoyantAble to float
- liftMechanism for vertical transport
- swim bladderFish buoyancy organ
- inflatableExpandable by air
bladder · balloon · pontoon · lifejacket · displacement · density · float · rise
alveolus
Microscopic pulmonary chamber
- alveoliLung's gas-exchange chambers
- lungRespiratory chest organ
- respiratoryRelated to breathing organs
bronchiole · gas exchange · pulmonary · oxygen · membrane · diffusion · surfactant · capillary · epithelium · breathing
cavity
Empty space within
compartment · hollow · honeycomb · foam · porous · aerogel · insulation · thermal · ventilation · spacing
flotation
Ability to stay afloat
- buoyantAble to float
- liftMechanism for vertical transport
- swim bladderFish buoyancy organ
inflatable · bladder · balloon · pontoon · lifejacket · displacement · density · float · rise · lightweight
air cellsolid core
Interior without voids
solid block · blood vessel · bone · cartilage · parenchyma
air, cell, aerial, airtight, cellular, aerated, aerate, airspace, aerodynamic