fergusonite
(noun) a dark mineral consisting of oxides of yttrium and erbium and tantalum and other minerals
Source: WordNet® 3.1
Fer"gu*son*ite, n. (Min.)
Definition: A mineral of a brownish black color, essentially a tantalo- niobate of yttrium, erbium, and cerium; -- so called after Robert Ferguson.
Source: Webster’s Unabridged Dictionary 1913 Edition
22 November 2024
(noun) (nautical) a line (rope or chain) that regulates the angle at which a sail is set in relation to the wind
Decaffeinated coffee is not caffeine-free. Studies from the National Institute of Health (US) have shown that virtually all decaf coffee types contain caffeine. A 236-ml (8-oz) cup of decaf coffee contains up to 7 mg of caffeine, whereas a regular cup provided 70-140 mg.
