BUTTY
But"ty, n. (Mining)
Defn: One who mines by contract, at so much per ton of coal or ore.
BUTYL
Bu"tyl, n. Etym: [L. butyrum butter + -yl. See Butter.] (Chem.)
Defn: A compound radical, regarded as butane, less one atom of hydrogen.
BUTYLAMINE
Bu`tyl*am"ine, n. [Butyric + -yl + amine.] (Org. Chem.)
Defn: A colorless liquid base, C4H9NH2, of which there are four isomeric varieties.
BUTYLENE
Bu"ty*lene, n. Etym: [From Butyl.] (Chem.)
Defn: Any one of three metameric hydrocarbons, C4H8, of the ethylene series. They are gaseous or easily liquefiable.
BUTYRACEOUS
Bu`ty*ra"ceous, a. Etym: [L. butyrum butter. See Butter.]
Defn: Having the qualities of butter; resembling butter.