Jetstream is valid Scrabble Word

Is jetstream a scrabble word?
Official Scrabble Players Dictionary NO
Official Tournament and Club Word List YES
Collins Scrabble Words YES
Is jetstream valid Words with Friends?
Words with Friends NO

9 letters word
18 points in Scrabble
21 points in WWF

Definitions for JETSTREAM in dictionary:

NOUN:

a narrow belt of high-altitude winds moving east at high speeds and having an important effect on frontogenesis
narrow belt of high-altitude winds moving east at high speeds)
a narrow variable band of very strong predominantly westerly air currents encircling the globe several miles above the earth. There are typically two or three jet streams in each of the northern and southern hemispheres
a flow of exhaust gases from a jet engine.

OTHER DEFINITIONS:

a long narrow meandering current of high-speed winds near the tropopause blowing from a generally westerly direction and often exceeding a speed of 250 miles (402 kilometers) per hour

Words related to JETSTREAM

jetstreams19

Words that contain JETSTREAM

jetstreams19

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