ketone
(noun) any of a class of organic compounds having a carbonyl group linked to a carbon atom in each of two hydrocarbon radicals
Source: WordNet® 3.1
ketone (plural ketones)
(organic compound) A homologous series of organic molecules whose functional group is an oxygen atom joined to a carbon atom—by a double bond—in a carbon-hydrogen based molecule.
• camphor C₁₀H₁₇O
• Keeton
Source: Wiktionary
Ke"tone, n. Etym: [Cf. Acetone.] (Chem.)
Definition: One of a large class of organic substances resembling the aldehydes, obtained by the distillation of certain salts of organic acids and consisting of carbonyl (CO) united with two hydrocarbon radicals. In general the ketones are colorless volatile liquids having a pungent ethereal odor.
Note: The ketones are named by adding the suffix-one to the stems of the organic acids from which they are respectively derived; thus, acetic acid gives acetone; butyric acid, butyrone, etc.
Source: Webster’s Unabridged Dictionary 1913 Edition
23 December 2024
(noun) Australian tree having hard white timber and glossy green leaves with white flowers followed by one-seeded glossy blue fruit
Coffee dates back to the 9th century. Goat herders in Ethiopia noticed their goats seem to be “dancing” after eating berries from a particular shrub. They reported it to the local monastery, and a monk made a drink out of it. The monk found out he felt energized and kept him awake at night. That’s how the first coffee drink was born.
