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1. An optical instrument for measuring crystal angles, as between crystal faces.
2. A radio receiver and directional antenna used as a system to determine the angular direction of incoming radio signals.

[Greek gōniā, angle; see genu- in Indo-European roots + -meter.]

go′ni·o·met′ric (-nē-ə-mĕt′rĭk), go′ni·o·met′ri·cal adj.
go′ni·om′e·try n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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References in periodicals archive ?
The additional measurements of contrast gloss, not reported here, were performed using a goniometric spectrophotometer.
Since full kinetic chain analysis of throwing performance is an impractical field method, joint mobility is commonly quantified using traditional goniometric measurements of range of motion (ROM).
The subject was in supine position on a plinth, the axis of hip joint co-insides with the goniometric grid placed on the wall adjacent to the plinth.
Each transducer was attached to a goniometric test fixture and they were aligned for maximum level of second reflection.
The potential of SilviScan's X-ray diffractometry method for the rapid assessment of spiral grain in softwood, evaluated by goniometric measurements.
Several clinical methods exist for obtaining goniometric measurements.
The most common use of the DSP 200 is on-the-fly goniometric raster measurements.
Studies have shown that goniometric measurements are reliable to 4[degrees] to 5[degrees] when taken by the same tester.
The volunteers layed relaxed on their back, with slightly flexed lower limbs (10[degrees]-15[degrees] defined by goniometric measurement) and with the hands along the body.
For the elbow specifically, it is unclear which of the available goniometric measurement methods is the most reliable to measure flexion, extension, pronation, and supination.