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Webster 1913 Edition
Isothermal
Iˊso-ther′mal
,Adj.
[Cf. F.
isotherme
.] (a)
Relating to equality of temperature, or an isotherm.
(b)
(Phys. Geog.)
Having reference to the geographical distribution of temperature, as exhibited by means of isotherms;
as, an
isothermal
line; an isothermal
chart.Isothermal line
. (a)
An isotherm
. (b)
A line drawn on a diagram of energy such that its ordinates represent the pressures of a substance corresponding to various volumes, while the absolute temperature is maintained at a constant value.
– Isothermal zones
, spaces on opposite sides of the equator having the same mean temperature, and bounded by corresponding isothermal lines.
Webster 1828 Edition
Isothermal
ISOTHERM'AL
,Adj.