heptane
(noun) a colorless volatile highly flammable liquid obtained from petroleum and used as an anesthetic or a solvent or in determining octane ratings
Source: WordNet® 3.1
heptane (plural heptanes)
(organic compound) Any of the nine isomers of the saturated aliphatic hydrocarbon C7H16, obtained from petroleum, especially n-heptane (CH3(CH2)5CH3)
• phenate
Source: Wiktionary
Hep"tane, n. Etym: [Gr. "epta` seven.] (Chem.)
Definition: Any one of several isometric hydrocarbons, C7H16, of the paraffin series (nine are possible, four are known); -- so called because the molecule has seven carbon atoms. Specifically, a colorless liquid, found as a constituent of petroleum, in the tar oil of cannel coal, etc.
Source: Webster’s Unabridged Dictionary 1913 Edition
28 March 2025
(noun) a person who invites guests to a social event (such as a party in his or her own home) and who is responsible for them while they are there
The word “coffee” entered the English language in 1582 via the Dutch “koffie,” borrowed from the Ottoman Turkish “kahve,” borrowed in turn from the Arabic “qahwah.” The Arabic word qahwah was traditionally held to refer to a type of wine.
