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ichloride of antimony; also, certain concrete fat oils remaining nearly solid at ordinary temperatures, as butter of cacao, vegetable butter, shea butter. Butter and eggs (Bot.), a name given to several plants having flowers of two shades of yellow, as Narcissus incomparabilis, and in the United States to the toadflax…

e unit of heat according to the Frensc standard; the amount of heat requires to raise the temperature of one kilogram (sometimes, one gram) of water one degree centigrade, or from 0Foot pound.

A method of attaining successively lower temperatures by utilizing the cooling effect of the expansion of one gas in condensing another less easily liquefiable, and so on.

The condition of a place in relation to various phenomena of the atmosphere, as temperature, moisture, etc., especially as they affect animal or vegetable life.

ctor, expressing the amount of some change or effect under certain fixed conditions as to temperature, length, volume, etc.; as, the coefficient of expansion; the coefficient of friction. Arbitrary coefficient (Math.), a literal coefficient placed arbitrarily in an algebraic, expression, the value of the coefficient be…

Deprived of heat, or having a low temperature; not warm or hot; gelid; frigid. "The snowy top of cold Olympis." Milton.

In the terminology of the United States Weather Bureau, an unusual fall in temperature, to or below the freezing point, exceeding 16º in twenty-four hours or 20º in thirty-six hours, independent of the diurnal range.

for a timepiece. The rim is usually made of two different expansibility under changes of temperature, so arranged as to counteract each other and preserve uniformity of movement. -- Compensation pendulum. See Pendulum.

The act or process of reducing, by depression of temperature or increase of pressure, etc., to another and denser form, as gas to the condition of a liquid or steam to water.

ecome more compact; to be reduced into a denser form. Nitrous acid is gaseous at ordinary temperatures, but condenses into a very volatile liquid at the zero of Fahrenheit. H. Spencer.

me through unit area of plate whose thickness is unity, when its opposite faces differ in temperature by one degree. J. D. Everett. -- Thermometic conductivity (Physics), the thermal conductivity when the unit of heat employed is the heat required to raise unit volume of the substance one degree.

heat or electricity, by means of currents in liquids or gases, resulting from changes of temperature and other causes. Liquids are generally heated by convection -- when heat is applied from bellow. Nichol.

A moderate state of cold; coolness; -- said of the temperature of the air between hot and cold; as, the cool of the day; the cool of the morning or evening.

st important work, the "Critique of Pure Reason." - - Critical point (Physics), a certain temperature, different for different gases, but always the same for each gas, regarded as the limit above which no amount of pressure can produce condensation to a liquid.

lt, ammonium chloride, etc., which crystallizes with water of crystallization only at low temperatures, or below the freezing point of water. F. Guthrie.

A thermometer for the measurement of low temperatures, esp. such an instrument containing alcohol or some other liquid of a lower freezing point than mercury.

ssure from the first products of the distillation of petroleum; -- used for producing low temperatures.

he dewpoint (Meteor.), the number of degreees that the dew-point is lower than the actual temperature of the atmosphere. -- Depression of the pole, its apparent sinking, as the spectator goes toward the equator. -- Depression of the visible horizon. (Astron.) Same as Dip of the horizon, under Dip.

The temperature at which dew begins to form. It varies with the humidity and temperature of the atmosphere.

ir bulbs, and containing a colored liquid, used for indicating the difference between the temperatures to which the two bulbs are exposed, by the change of position of the colored fluid, in consequence of the different expansions of the air in the bulbs. A graduated scale is attached to one leg of the tube. -- Differe…