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Conforming to the scale used by Gabriel Daniel Fahrenheit in the graduation of his thermometer; of or relating to Fahrenheit's thermometric scale. -- n.

nt, in the scale of absolute temperature. It is equivalent to -273º centigrade or -459.4º Fahrenheit.

ndred and twenty-five pounds in weight. It is wholly volatilized as a white vapor at 212º Fahrenheit, and is highly valued in perfumery. Dana.

lliant luster, though usually dull from tarnish. It is very brittle, and sublimes at 356º Fahrenheit. It is sometimes found native, but usually combined with silver, cobalt, nickel, iron, antimony, or sulphur. Orpiment and realgar are two of its sulphur compounds, the first of which is the true arsenticum of the ancien…

er different pressures. For water, at the level of the sea, barometer 30 in., it is 212 º Fahrenheit; for alcohol, 172.96º; for ether, 94.8º; for mercury, about 675º. The boiling point of water is lowered one degree Fahrenheit for about 550 feet of ascent above the level of the sea. -- Boiling spring, a spring which g…

aseous at ordinary temperatures, but condenses into a very volatile liquid at the zero of Fahrenheit. H. Spencer.

as found by Joule to be 1390 foot pounds upon the Centigrade, or 772 foot pounds upon the Fahrenheit, thermometric scale, whence it is often called Joule's equivalent, and represented by the symbol J. This is equal to 424 kilogram meters (Centigrade scale). A more recent determination by Professor Rowland gives the val…

n standard temperature. The temperature usually employed is that of 0º Centigrade, or 32º Fahrenheit.

ght of a cubic decimeter of distilled water at the temperature of maximum density, or 39º Fahrenheit.

hich contains one half of its volume of alcohol, the alcohol when at a temperature of 60º Fahrenheit being of specific gravity 0.7939 referred to water at its maximum density as unity. Proof spirit has at 60º Fahrenheit a specific gravity of 0.93353, 100 parts by volume of the same consisting of 50 parts of absolute al…

especially as to horizontal distance; as, the temperature ranged through seventy degrees Fahrenheit; the gun ranges three miles; the shot ranged four miles.

being one gram or one pound, and the temperature interval one degree of the Centigrade or Fahrenheit scale. When referred to the gram, it is called the gram degree. The British unit of heat, or thermal unit, used by engineers in England and in the United States, is the quantity of heat necessary to raise one pound of p…