Search the Dictionary

A liquid hydrocarbon, C6H8, of the valylene series, obtained from distillation products of certain fats and gums.

H12, of the ethylene series, produced artificially, and found as a natural product of distillation of certain coals; also, any one several isomers of hexylene proper. Called also hexene.

An oily substance prepared by the dry distillation of a bituminous mineral containing fossil fishes. It is used in medicine as a remedy in some forms of skin diseases.

Relating to, dependent on, or denoting, illation; inferential; conclusive; as, an illative consequence or proposition; an illative word, as then, therefore, etc. Illative conversion (Logic), a converse or reverse statement of a proposition which in that form must be true because the original proposition is true. -- Il…

t of settled purpose, or of firmness; indetermination; wavering of mind; irresolution; vacillation; hesitation. The term indecision . . . implies an idea very nicely different from irresolution; yet it has a tendency to produce it. Shenstone. Indecision . . . is the natural accomplice of violence. Burke.…

The act of infusing, pouring in, or instilling; instillation; as, the infusion of good principles into the mind; the infusion of ardor or zeal. Our language has received innumerable elegancies and improvements from that infusion of Hebraisms. Addison.

Belonging to instillation. [R.]

luctuation of mind, as in doubt, or between hope and fear; irresoluteness; indecision; vacillation. Irresolution on the schemes of life which offer themselves to our choice, and inconstancy in pursuing them, are the greatest causes of all unhappiness. Addison.

me; performed in equal times; recurring at regular intervals; isochronal vibrations or oscillations.

An oily, volatile hydrocarbon, obtained by the distillation of caoutchouc or guttaipercha.C5H8 -- unsaturated, and used to make synthetic rubber by polymerization. In organic chemistry, viewed conceptually as the building block of the terpene series of hydrocarbons

An oil used for illuminating purposes, formerly obtained from the distillation of mineral wax, bituminous shale, etc., and hence called also coal oil. It is now produced in immense quantities, chiefly by the distillation and purification of petroleum. It consists chiefly of several hydrocarbons of the methane series.…

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.

An organic base, C9H6.N.CH3, metameric with quinaldine, and obtained by the distillation of cinchonine.

ion until the saccharine principle has been evolved. It is used in brewing and in the distillation of whisky.

ethyl alcohol (Chem.), a light, volatile, inflammable liquid, CH3.OH, obtained by the distillation of wood, and hence called wood spirit; -- called also methol, carbinol, etc. -- Methyl amine (Chem.), a colorless, inflammable, alkaline gas, CH3.NH2, having an ammoniacal, fishy odor. It is produced artificially, and al…

ic labiate plants, mostly of the genus Mentha, yielding odoriferous essential oils by distillation. See Mentha.

One of several volatile inflammable liquids obtained by the distillation of certain carbonaceous materials and resembling the naphtha from petroleum; as, Boghead naphtha, from Boghead coal (obtained at Boghead, Scotland); crude naphtha, or light oil, from coal tar; wood naphtha, from wood, etc.

te crystalline aromatic hydrocarbon, C10H8, analogous to benzene, and obtained by the distillation of certain bituminous materials, such as the heavy oil of coal tar. It is the type and basis of a large number of derivatives among organic compounds. Formerly called also naphthaline. Naphthalene red (Chem.), a dyestuff…

An essential oil obtained by distillation from the flowers of the orange. It has a strong odor, and is used in perfumery, etc. Neroli camphor (Chem.), a white crystalline waxy substance, tasteless and odorless, obtained from beroli oil; -- called also auradin.

A rapid involuntary oscillation of the eyeballs.