Defn: Butane, each molecule of which has four carbon atoms.
QUARTATION Quar*ta"tion, n. Etym: [L. quartus the fourth: cf. F. quartation. So called because usually enough silver is added to make the amount of gold in the alloyed button about one fourth.] (Chem. & Assaying)
Defn: The act, process, or result (in the process of parting) of alloying a button of nearly pure gold with enough silver to reduce the fineness so as to allow acids to attack and remove all metals except the gold; — called also inquartation. Compare Parting.
QUARTE
Quarte, n. Etym: [F.]
Defn: Same as 2d Carte.
QUARTENE
Quar"tene, n. Etym: [Ouartane + ethylene.] (Chem.)
Defn: Same as Butylene.
QUARTENYLIC
Quar"ten*yl"ic, a. Etym: [Quartene + -yl + -ic.] (Chem.)
Defn: Pertaining to, or designating, an acid of the acrylic acid series, metameric with crotonic acid, and obtained as a colorless liquid; — so called from having four carbon atoms in the molecule. Called also isocrotonic acid.
QUARTER Quar"ter, n. Etym: [F. quartier, L. quartarius a fourth part, fr. quartus the fourth. See Quart.]