(Canada, US) The punctuation mark "¡", which is placed at the beginning of exclamations in Spanish.

plural of inverted exclamation point

Alternative spelling of torsades de pointes

(cardiology) A polymorphic ventricular tachycardia, predisposing to sudden cardiac death and more likely to occur during prolongations of the QT interval.

(travel, aviation, fare construction) A place on an itinerary to which there is a higher fare than the destination or next fare break point.

plural of all-points bulletin

(law enforcement) A broadcast issued from one law enforcement agency to another, typically containing information about a wanted suspect or a person of interest.

(travel, aviation) An officially stated distance between two cities, used in airline fare calculations regardless of the airports used

plural of ticket point mileage

(travel, aviation, fare construction) Any of the cities on an itinerary used as the start and finish of a particular fare.