AIR STOVE
Air" stove`.

Defn: A stove for heating a current of air which is directed against its surface by means of pipes, and then distributed through a building.

AIR-TIGHT
Air"-tight`, a.

Defn: So tight as to be impermeable to air; as, an air-tight cylinder.

AIR-TIGHT
Air"-tight`, n.

Defn: A stove the draft of which can be almost entirely shut off.
[Colloq. U. S.]

AIR VESSEL
Air" ves`sel.

Defn: A vessel, cell, duct, or tube containing or conducting air; as the air vessels of insects, birds, plants, etc.; the air vessel of a pump, engine, etc. For the latter, see Air chamber. The air vessels of insects are called tracheæ, of plants spiral vessels.

AIRWARD; AIRWARDS
Air"ward, Air"wards, adv.

Defn: Toward the air; upward. [R.] Keats.