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

(Greek: measure)

optometer
An instrument for measuring the distance of distinct vision, mainly for the selection of eve glasses.
optometry
1. The professional practice of primary eye and vision care that includes the measurement of visual refractive power and the correction of visual defects with lenses or glasses.
2. The practice of non-medical eye care, dealing primarily with the testing of vision for refractive errors and with the prescription and fitting of corrective lenses.
3. The professional practice of eye and vision care for the diagnosis, treatment, and prevention of diseases and conditions of the eyes and visual systems.
4. The practice of examining eyes in order to determine levels of vision and then prescribing and supplying any necessary corrective lenses.
orbitonometer, orbitonometry
A divice for measuring the ease of displacement of the eye into the orbital tissue, of value in the study of exophthalmos (an abnormally forward, protuberant position of the eye within the orbit; also, protopsis).
orchidometer
1. A caliper device used to measure the size of the testes.
2. A set of sized models of testes for comparison of testicular development.
orometer, orometric
A barometer with a scale that indicates elevation above sea level; including mountains.
orthometer
An instrument for determining the relative protrusion of the eyeballs.
orthometry
1. The art or practice of constructing verses correctly.
2. The laws of correct versification.
orthoplessimeter
An oblong flexible plate used in mediate percussion by being placed against the surface of the chest and struck with the plessor (small hammer, usually with soft rubber head, used to tap the body part directly, or with a plessimeter, in percussion of the chest or other part).
oscillometer
1. An apparatus for measuring oscillations of any kind, especially those of the bloodstream in sphygmometry.
2. Any of various instruments used to measure physiological oscillations; specifically, in blood pressure.
oscillometry
1. Measurement of oscillations of any kind. In medicine it is used in studying cardiovascular and respiratory physiology.
2. The use of an oscillometer; especially, to measure blood pressure or blood flow.
osmeterium
A gland found on many caterpillars that secretes an unpleasant smelling substance as a defense against predators.
osmometer
1. A device for measuring the acuity of the sense of smell.
2. An instrument for testing the sense of smell; an olfactometer.
osmometry
Measuring or testing the acuity of the sense of smell.
osphresiometer
An apparatus for measuring the acuteness of the sense of smell.
osphresiometry
Measuring the acuteness of the sense of smell.

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