ISOTHERMALLY
Etymology
Adverb
isothermally (not comparable)
In an isothermal manner; at constant temperature
Source: Wiktionary
ISOTHERMAL
I`so*ther"mal, a. Etym: [Cf. F. isotherme.]
(a) Relating to equality of temperature.
(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.
Source: Webster’s Unabridged Dictionary 1913 Edition