n. See Colocynth. Shak. [ 1913 Webster ]
‖n. [ Sp., shellfish, cockle. ] A soft, whitish, coral-like stone, formed of broken shells and corals, found in the southern United States, and used for roadbeds and for building material, as in the fort at St. Augustine, Florida. [ 1913 Webster ]
n. [ Hydro-, 2 + quinone. ] (Chem.) A white crystalline substance,
n. [ Iodo- + quinine. ] (Chem.) A iodide of quinine obtained as a brown substance, . It is the base of herapathite. See Herapathite. [ 1913 Webster ]
n. [ Naphthalene + quinone. ] (Chem.) A yellow crystalline substance,
n. [ Nitro- + quine + -ol. ] (Chem.) A hypothetical nitro derivative of quinol or hydroquinone, not known in the free state, but forming a well defined series of derivatives. [ 1913 Webster ]
n. [ Xylene + quinone. ] (Chem.) Any one of a group of quinone compounds obtained respectively by the oxidation of certain xylidine compounds. In general they are yellow crystalline substances. [ 1913 Webster ]