Airstone

Origin

air + stone

Full definition of airstone

Noun

1. 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.

Synonyms

• bubbler

Anagrams

• asterion
• notaries
• notarise
• rai stone
• senorita, señorita