(meteorology) A weather phenomenon where the polar vortex breaks down, causing a sudden temperature increase in the stratosphere of 50 kelvin or more.

An English surname, a variant of Tindall/Tyndale/Tindill. / A hamlet in the Rural Municipality of Brokenhead, Manitoba, Canada.

One versed in the Talmud. / One who adheres to the teachings of the Talmud.

(Internet) A type of server farm that offers users tools to simplify the creation and development of individual, independent wikis.