(Ther`mo*met"ric Ther`mo*met"ric*al) a. [Cf. F. thermométrique.]
1. Of or pertaining to a thermometer; as, the thermometrical scale or tube.
2. Made, or ascertained, by means of a thermometer; as, thermometrical observations.
(Ther`mo*met"ric*al*ly) adv. In a thermometrical manner; by means of a thermometer.
(Ther`mo*met"ro*graph) n. [Thermo- + Gr. measure + -graph.] (Physics) An instrument
for recording graphically the variations of temperature, or the indications of a thermometer.
(Ther*mom"e*try) n. The estimation of temperature by the use of a thermometric apparatus.
(Ther`mo*mul"ti*pli`er) n. [Thermo- + multiplier.] Same as Thermopile.
(Ther"mo*pile) n. [Thermo- + pile a heap.] (Physics) An instrument of extreme sensibility,
used to determine slight differences and degrees of heat. It is composed of alternate bars of antimony
and bismuth, or any two metals having different capacities for the conduction of heat, connected with
an astatic galvanometer, which is very sensibly affected by the electric current induced in the system of
bars when exposed even to the feeblest degrees of heat.
(Ther"mo*scope) n. [Thermo- + - scope.] (Physics) An instrument for indicating changes
of temperature without indicating the degree of heat by which it is affected; especially, an instrument
contrived by Count Rumford which, as modified by Professor Leslie, was afterward called the differential
(Ther`mo*scop"ic) a. (Physics) Of or pertaining to the thermoscope; made by means of
the thermoscope; as, thermoscopic observations.
(Ther"mo*stat) n. [Thermo- + Gr. to make to stand.] (Physics) A self-acting apparatus
for regulating temperature by the unequal expansion of different metals, liquids, or gases by heat, as
in opening or closing the damper of a stove, or the like, as the heat becomes greater or less than is
(Ther`mo*stat"ic) a. (Physics) Of or pertaining to the thermostat; made or effected by
means of the thermostat.
(Ther`mo*sys*tal"tic) a. [Thermo- + systaltic.] (Physiol.) Influenced in its contraction
by heat or cold; said of a muscle.