nitration (countable and uncountable, plural nitrations)
(chemistry) The reaction of something with nitric acid; especially such a reaction, in the presence of sulphuric acid, to introduce a nitro functional group into a compound.
• Tritonian, trination
Source: Wiktionary
12 June 2025
(noun) a decrease in the density of something; “a sound wave causes periodic rarefactions in its medium”
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.
