Unscramble

t 1 r 1 o 1 p 3 o 1 s 1 p 3 h 4 e 1 r 1 e 1

11 letters · 18 points in Scrabble

Meaning

noun the lowest atmospheric layer; from 4 to 11 miles high (depending on latitude)

originBorrowed from French troposphère. Equivalent to tropo- + -sphere.

Etymology from Wiktionary, CC BY-SA 3.0

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