Definitions

from The Century Dictionary.

  • Forming or producing oil.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective (Chem.), Archaic Forming or producing an oil; specifically, designating a colorless gaseous hydrocarbon called ethylene (olefiant gas).

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective That produces oil

Etymologies

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Examples

  • When a mixture of four parts of oil of vitriol and one part of strong spirits of wine, or alcohol, is heated in a retort, a gas is gene - rated, which, when washed by water, is found to be a peculiar gase - ous compound of carbon and hydrogene; it has been called olefiant

    Elements of Chemical Philosophy: Part 1, Vol.1 Humphry Davy, Sir Humphry Davy 1812

  • Carbureted hydrogen, olefiant gas, etc., are constant associates of the petroleum of springs or wells, and this escape of gas and oil has been going on in some localities, without apparent diminution, for two or three thousand years.

    Scientific American Supplement, No. 362, December 9, 1882 Various

  • = -- Coal gas contains light carburetted hydrogen or marsh gas, olefiant gas, ammonia, sulphuretted hydrogen, carbonic acid, carbonic oxide, free hydrogen, and nitrogen.

    Aids to Forensic Medicine and Toxicology

  • For such waves olefiant gas, for example, would vastly transcend it in absorbing power.

    Scientific American Supplement, No. 365, December 30, 1882 Various

  • Assume a natural gas, the analysis of which in percentages by volume is oxygen = 0.40, carbon monoxide = 0.95, carbon dioxide = 0.34, olefiant gas (C_ {2} H_ {4}) = 0.66, ethane (C_ {2} H_ {6}) = 3.55, marsh gas

    Steam, Its Generation and Use

  • In 1868 Huggins compared the spectrum of Winnecke's comet with that of a Geissler tube containing olefiant gas, and found exact agreement.

    History of Astronomy George Forbes 1892

  • On comparing its spectrum with that of an olefiant-gas "vacuum tube" rendered luminous by electricity, he found the agreement exact.

    A Popular History of Astronomy During the Nineteenth Century Fourth Edition 1874

  • Brédikhine, Vogel, and Huggins [1263] were unanimous in pronouncing its spectrum to be that of marsh or olefiant gas.

    A Popular History of Astronomy During the Nineteenth Century Fourth Edition 1874

  • It was at one time supposed that terrestrial or artificial light possessed no chemical rays, but this is incorrect -- Mr. Brande discovered that although the concentrated light of the moon, or the light even of olefiant gas, however intense, had no effect on chloride of silver, or on a mixture of chloride and hydrogen, yet the light emitted by electerized charcoal blackens the salt.

    History and Practice of the Art of Photography Henry Hunt Snelling 1856

  • Moreover, for the radiation from a hydrogen flame olefiant gas possesses twice the absorbent power of carbonic acid, while for the radiation from the carbonic oxide flame, at a common pressure of one inch of mercury, the absorption by carbonic acid is more than twice that of olefiant gas.

    Fragments of science, V. 1-2 John Tyndall 1856

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