EXOSPHERE

exosphere

(noun) the outermost atmospheric layer

Source: WordNet® 3.1


Etymology

Noun

exosphere (plural exospheres)

the uppermost layer of a planet's atmosphere

an extremely thin atmosphere, as on Saturn's moon Dione

• "Scientists weren't even sure Dione would be big enough to hang on to an exosphere" ('Cassini Detects Hint of Fresh Air at Dione', Cassini Solstice Mission, JPL, Mar. 02, 2012)

Source: Wiktionary



RESET




Word of the Day

9 June 2025

HERMAPHRODITE

(noun) one having both male and female sexual characteristics and organs; at birth an unambiguous assignment of male or female cannot be made


coffee icon

Coffee Trivia

In the 18th century, the Swedish government made coffee and its paraphernalia (including cups and dishes) illegal for its supposed ties to rebellious sentiment.

coffee icon