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The quality or state of being irascible; irritability of temper; irascibleness.

ly provoked or inflamed to anger; choleric; irritable; as, an irascible man; an irascible temper or mood. -- I*ras"ci*ble*ness, n. -- I*ras"ci*bly, adv.

ality of being irritable; quick excitability; petulance; fretfulness; as, irritability of temper.

Very susceptible of anger or passion; easily inflamed or exasperated; as, an irritable temper. Vicious, old, and irritable. Tennyson.

A line connecting the points on the surface of the earth where a certain temperature is found at the same depth.

Of or pertaining to an isobathytherm; possessing or indicating the same temperature at the same depth.

A line connecting places on the earth having the same mean winter temperature. Cf. Isothere.

thermodynamic diagram so drawn as to represent the pressures corresponding to changes of temperature when the volume of the gas operated on is constant. -- I`so*chor"ic (#), a.

A line connecting points on the earth's surface having the same mean temperature in the coldest month of the year.

density of a fluid, the one during the lowering, and the other during the raising, of its temperature, when the quantity of heat given out by the fluid during any given stage of the one process is equal to the quantity received during the corresponding stage of the other. Such lines are said to be isodiabatic with resp…

or curved surface passing beneath the earth's surface through points having the same mean temperature.

ric lines (Thermodynamics), lines representing in a diagram the relations of pressure and temperature in a gas, when the volume remains constant. -- Isometrical perspective. See under Perspective. -- Isometrical projection, a species of orthographic projection, in which but a single plane of projection is used. It is…

Pepsin modified by exposure to a temperature of from 40º to 60º C.

Having equal pressure. Isopiestic lines, lines showing, in a diagram, the relations of temperature and volume, when the elastic force is constant; -- called also isobars.

Having the nature of an isothere; indicating the distribution of temperature by means of an isothere; as, an isotheral chart or line.

A line connecting points on the earth's surface having the same mean summer temperature.

A line connecting or marking points on the earth's surface having the same temperature. This may be the temperature for a given time of observation, or the mean temperature for a year or other period. Also, a similar line based on the distribution of temperature in the ocean.

Relating to equality of temperature.

A line drawn through points of equal temperature in a vertical section of the ocean.

Of or pertaining to an isothermobath; possessing or indicating equal temperatures in a vertical section, as of the ocean.