Defn: 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.
KETONIC
Ke*ton"ic, a. (Chem.)
Defn: Pertaining to, or derived from, a ketone; as, a ketonic acid.
KETTLE Ket"tle, n. Etym: [OE. ketel; cf. AS. cetel, cetil, cytel; akin to D. kjedel, G. kessel, OHG. chezzil, Icel. ketill, SW. kittel, Dan. kjedel, Goth. katils; all perh. fr. L. catillus, dim. of catinus a deep vessel, bowl; but cf. also OHG. chezzi kettle, Icel. kati small ship.]
Defn: A metallic vessel, with a wide mouth, often without a cover, used for heating and boiling water or other liguids. Kettle pins, ninepins; skittles. [Obs.] Shelton. — Kettle stitch (Bookbinding), the stitch made in sewing at the head and tail of a book. Knight.
KETTLEDRUM
Ket"tle*drum`, n.
1. (Mus.)
Defn: A drum made of thin copper in the form of a hemispherical kettle, with parchment stretched over the mouth of it.
Note: Kettledrums, in pairs, were formerly used in martial music for cavalry, but are now chiefly confined to orchestras, where they are called tympani.