| Words | Parts of Speech | Meaning/Definition/Similar Words |
|---|---|---|
| air cell | A cavity in the cellular tissue of plants, containing air only., A receptacle of air in various parts of the system; as, a cell or minute cavity in the walls of the air tubes of the lungs; the air sac of birds; a dilatation of the air vessels in insects. | |
| air cock | A faucet to allow escape of air. | |
| air hole | A hole to admit or discharge air; specifically, a spot in the ice not frozen over., A fault in a casting, produced by a bubble of air; a blowhole. | |
| airiness | noun | The state or quality of being airy; openness or exposure to the air; as, the airiness of a country seat., Lightness of spirits; gayety; levity; as, the airiness of young persons. |
| air pipe | A pipe for the passage of air; esp. a ventilating pipe. | |
| air pump | A kind of pump for exhausting air from a vessel or closed space; also, a pump to condense air or force it into a closed space., A pump used to exhaust from a condenser the condensed steam, the water used for condensing, and any commingled air. | |
| airwards | adverb | Toward the air; upward. |