You can overdose on coffee if you drink about 30 cups in a brief period to get close to a lethal dosage of caffeine.
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
Recent Word Finds
Word of the Day
12 May 2025
UNSEASONED
(adjective) not tried or tested by experience; “unseasoned artillery volunteers”; “still untested in battle”; “an illustrator untried in mural painting”; “a young hand at plowing”
Coffee Trivia
