One of the mysteries of the English language finally explained.
An instrument for the precise measurement of angles, especially one used to measure the angles between the faces of crystals.
- ‘Angular resolved spectra of surface samples were obtained using a homemade goniometer.’
- ‘We constructed a goniometer to measure angularly resolved light scattering.’
- ‘On the photograph that was later printed, lines were drawn between the markers and the horizontal floor to create intersecting lines that could be measured by a goniometer.’
- ‘Measuring the femoral tibial angle with a goniometer is a more accurate way to quantify angulation.’
- ‘Range of motion was measured with a goniometer, and the side-to-side differences for extension and flexion were calculated.’
Mid 18th century: from French goniomètre, from Greek gōnia ‘angle’ + French -mètre ‘(instrument) measuring’.
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