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Webster’s Dictionary (1828)

98,828 entries. Headwords are matched first, then definition text.

725 words match “METER”

PLANOMETER n.
An instrument for gauging or testing a plane surface. See Surface gauge, under Surface.
PLATOMETER n.
See Planimeter.
PLATYMETER n.
An apparatus for measuring the capacity of condensers, or the inductive capacity of dielectrics.
PLESSIMETER n.
See Pleximeter.
PLEXIMETER n.
t with body to receive the blow, in examination by mediate percussion. [Written also plexometer.]
PLUVIAMETER n.
See Pluviometer.
PLUVIOMETER n.
An instrument for ascertaining the amount of rainfall at any place in a given time; a rain gauge.
PNEOMETER n.
A spirometer.
PNEUMATOMETER n.
An instrument for measuring the amount of force exerted by the lungs in respiration.
PNEUMOMETER n.
A spirometer.
PNEUMONOMETER n.
A spirometer; a pneumometer.
POLARIMETER n.
An instrument for determining the amount of polarization of light, or the proportion of polarized light, in a partially polarized ray.
POTENTIOMETER n.
An instrument for measuring or comparing electrial potentials or electro-motive forces.
PSYCHROMETER n.
tension of the aqueous vapor in the atmosphere, being essentially a wet and dry bulb hygrometer.
PULMOMETER n.
A spirometer.
PULSIMETER n.
A sphygmograph.
PULSOMETER n. 2 definitions
A pulsimeter.
PUPILLOMETER n.
An instrument for measuring the size of the pupil of the pupil of the eye.
PYCNOMETER n.
a standard flask for measuring and comparing the densities of liquids. [Also written pyknometer.]
PYRHELIOMETER n.
An instrument for measuring the direct heating effect of the sun's rays.
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