A violent whirling wind; specifically (Meteorol.), a tempest distinguished by a rapid whirling and slow progressive motion, usually accompaned with severe thunder, lightning, and torrents of rain, and commonly of short duration and small breadth; a small cyclone<-- twister -->.

A violent whirl, generally cyclonic in sense, averaging about 100 miles in diameter and with an intense vertical current at the centre. Associated winds may attain speeds of about 200 knots. Heavy rain, and generally thunder and lightning, occur with the tornado. The term 'tornado' has also been used for thunderstorm squalls in West Africa.

The most violent vortex storm on earth. Most commonly, tornados originate within a thunderstorm, although other processes can produce weaker tornados. Tornado strength can be classified on the Fujita scale of intensity which numbers from 0 to 5. F5 tornados are the most destructive known, with winds over 250 possible. F0 tornados are the weakest, though they can still produce significant damage.

A violent, rotating column of air touching the ground; funnel cloud that touches the ground (see funnel cloud and waterspout).

Tornado was a shortlived weekly British comic published for 22 issues by IPC Magazines between March 1979http://www.2000adonline.com/?zone=prog&page=specials&choice=tornado01 and August 1979. After the cancellations of the Starlord and Action titles IPC launched Tornado as a way to use up stories already commissioned for the other titles. Like Action it was a mixed title featuring War, Detective, Horror and Science Fiction stories.

Tornado was a competitor on the UK TV series Robot Wars, noteworthy as the champion of the sixth series.

The Tornado is a fictional red biplane in the Sonic the Hedgehog series of video games. It made its first appearance in Sonic the Hedgehog 2 and has since featured in many other Sonic games. It is typically piloted by Miles "Tails" Prower, while Sonic or other characters walk on its wings.