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 atomâby a double bondâin a carbon-hydrogen based molecule.
• camphor CââHââO
• 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
6 May 2025
(adjective) marked by or paying little heed or attention; âWe have always known that heedless self-interest was bad morals; we know now that it is bad economicsâ--Franklin D. Roosevelt; âheedless of dangerâ; âheedless of the childâs cryingâ
Coffee dates back to the 9th century. Goat herders in Ethiopia noticed their goats seem to be âdancingâ 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. Thatâs how the first coffee drink was born.
