meter-, metro-, metr-, -metrical, -metrically, -metron, -metric, -metrist, -meter, -meters, -metry, -metre

(Greek: measure)

oleometer
1. A hydrometer used to determine the specific gravity of oils, or calibrated in the range of specific gravity of oils.
2. An apparatus for determining the content of oil in a material.
olfactometer (s) (noun), olfactometers (pl)
1. An apparatus for testing the sensitiveness of odor perceptions.
2. A device for estimating the sensitivity to different odorants.
olfactometry (s) (noun), olfactometries (pl)
1. The measurement of the sense of smell.
2. A determination of the degree of sensitivity to odorants.
oligochronometer
An instrument for measuring very short time intervals.
ombrometer (s) (noun), ombrometers (pl)
A rain gauge which collects and measures rainfall as expressed in inches or centimeters of depth.
omnimeter
oncometer
An instrument for measuring the variations in size of the internal organs of the body, as the kidney, spleen, etc.
oncometry
The procedure of determining changes in the size of an organ by using an oncometer.
oncosimeter
ondometer
oometer
ophthalmometer
An instrument for measuring the reflection of an image on the surface of the cornea and other capacities of the eye; used primarily for determining the presence and degree of astigmatism (visual impairment in which part of an image is blurred, due to an irregularity in the curvature of the front surface of the eye, the cornea).
ophthalmometry
1. Determination of the refractive powers and defects of the eyes.
2. Measuring the reflection of an image on the surface of the cornea and other capacities of the eyes, used chiefly for determining the presence and degree of astigmatism (a common form of visual impairment in which part of an image is blurred).
ophthalmothermometer
An instrument for recording the temperature of the eyes.
ophthalmotonometry.
The indirect estimation of intraocular pressure by determining the resistance of the eyeball to indentation by an applied force; also, tonometry.

Related "measure" and "metric" words and charts: mens-; Metric Chart of Units; Metric-Length Converter; Metric Units and Links.