Home › Words › A › airstoneairstoneairstone means A piece of aquarium furniture, traditionally limewood or porous stone, whose purpose is to diffuse oxygen gradually into the tank, eliminating the noise and large bubbles of conventional air filtration systems.EtymologyFrom air + stone.nounA piece of aquarium furniture, traditionally limewood or porous stone, whose purpose is to diffuse oxygen gradually into the tank, eliminating the noise and large bubbles of conventional air filtration systems.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.oxygenator 58% match — any device that releases oxygen (or air) into water, especially one in an aquarium vs airstone →aerator 57% match — A device which mixes air with a substance, particularly soil or a liquid. vs airstone →airation 52% match — aeration vs airstone →aquarium 51% match — A tank, often made of glass, for keeping live fish or other aquatic animals. vs airstone →biodiffuser 50% match — A biological diffuser vs airstone →bubbler 50% match — Something that emits bubbles. vs airstone →aerate 50% match — To supply with oxygen or air. vs airstone →airhole 49% match — A hole provided for ventilation or breathing. vs airstone →