(aviation) The rapid, uncontrollable descent of an aircraft in a steep spiral. / (figuratively) A severe mental or emotional collapse; emotional breakdown.

Of an aircraft: to go into a rapid, uncontrollable descent in a steep spiral. / (figuratively) To go into a sharp, sustained, often uncontrollable descent or decline.

plural of tailspin

plural of tailslide

A backwards movement of an aircraft at the top of a stall. / Any of several maneuvers, of a car, skateboard etc., in which the rear moves faster than the front.

The part of a lathe that supports the object being worked along its rotatory axis.

A colored spot on the tail of various animals, especially fish.

(aviation) Unintended contact of the rear of an aircraft's fuselage with the ground during a takeoff or landing.

A vertical-takeoff aircraft whose fuselage is perpendicular to the ground at takeoff.

plural of tailstock