e/Vortex ring toy

Information
has gloss	eng: A vortex ring toy generates vortex rings — rolling donut-shapes of fluid — which move through the fluid (most often air, and sometimes water). A smoke ring is a common example of a vortex ring. Because of the way they rotate, a vortex ring can hold itself together and travel for quite a distance. A vortex cannon generates vortex rings, typically using acetylene-air or hydrogen-oxygen explosions.
lexicalization	eng: Vortex Ring toys
lexicalization	eng: vortex ring toy
instance of	(noun) a powerful circular current of water (usually the result of conflicting tides) maelstrom, whirlpool, vortex