An extended belt of strong westerly winds five to 15 miles above sea level that often appears in temperate latitudes, particularly during wintertime. Jetstreams form the dividing lines between warm tropical airmasses and cold polar airmasses, and they steer precipitation-bearing weather systems.

Jetstream (Haroun ibn Sallah al-Rashid) is a fictional Moroccan mutant character in the Marvel Comics Universe. He was created for the group known as the Hellions, and his first appearance was in New Mutants #16.

Java Extraction Transformation Service for Transmitting Records & Exchanging Application Metadata: a Java-based ETL/EAI tool.

The Jetstream was the last roller coaster to be built at Chicago's legendary Riverview Park. It was built in 1965 and met its unfortunate end in 1968 when the park was demolished. The Jetstream, which was built to replace the park's aging Greyhound roller coaster, was not yet paid off when demolished.

"Jetstream" is a single by New Order. Released through Warner Music on 16 May, 2005, it is the second single to be taken from their album Waiting for the Sirens' Call.

A jet issuing from an orifice into a medium with much lower velocity, such as the stream of combustion products ejected from a reaction engine. In the meteorological sense jet stream is two words, see following definition, but in the sense defined above, one word.