An article published in Harvard Men’s Health Watch in 2012 shows heavy coffee drinkers live longer. The researchers examined data from 400,000 people and found out that men who drank six or more coffee cups per day had a 10% lower death rate.
obsidian
(noun) acid or granitic glass formed by the rapid cooling of lava without crystallization; usually dark, but transparent in thin pieces
Source: WordNet® 3.1
obsidian (usually uncountable, plural obsidians)
(mineral) A type of black glass produced by volcanoes.
obsidian (comparative more obsidian, superlative most obsidian)
(poetic) black
• anobiids
Source: Wiktionary
Ob*sid"i*an, n. Etym: [L. Obsidianus lapis, so named, according to Pliny, after one Obsidius, who discovered it in Ethiopia: cf.F. obsidiane, obsidienne. The later editions of Pliny read Obsianus lapis, and Obsius, instead of Obsidianus lapis, and Obsidius.] (Min.)
Definition: A kind of glass produced by volcanoes. It is usually of a black color, and opaque, except in thin splinters.
Note: In a thin section it often exhibits a fluidal structure, marked by the arrangement of microlites in the lines of the flow of the molten mass.
Source: Webster’s Unabridged Dictionary 1913 Edition
4 June 2025
(verb) bestow a quality on; “Her presence lends a certain cachet to the company”; “The music added a lot to the play”; “She brings a special atmosphere to our meetings”; “This adds a light note to the program”
An article published in Harvard Men’s Health Watch in 2012 shows heavy coffee drinkers live longer. The researchers examined data from 400,000 people and found out that men who drank six or more coffee cups per day had a 10% lower death rate.