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biplane

noun

  1. airplane wing configuration with two stacked main flying surfaces
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Wiktionary

Pronunciation: /ˈbaɪpleɪn/

adj

Etymology: Etymology tree Proto-Indo-European *dwóh₁ Proto-Indo-European *dwi- Proto-Italic *dwi- Latin bi-bor. English bi- English plane English biplane From bi- + plane.

  1. Composed of, or relating to, two planes (flat surfaces extending infinitely in all directions).

    biplane angiography

    The left apical 4-chamber image is used for one measurement and for a “biplane” estimate (that averages values from orthogonal planes), either the right parasternal long-axis image (the authors' preference) or the left apical 2-chamber view (shown here) is also measured. […] Either a biplane (Simpson) method of discs or a 3D volumetric rendering is used for LV volume measurements in human echocardiography laboratories.

  2. Having, or consisting of, two superposed planes, aerocurves, etc.

    a biplane rudder

noun

Etymology: Etymology tree Proto-Indo-European *dwóh₁ Proto-Indo-European *dwi- Proto-Italic *dwi- Latin bi-bor. English bi- English plane English biplane From bi- + plane.

  1. An airplane that has two main wings, one above the other and supported by struts.

verb

Etymology: Etymology tree Proto-Indo-European *dwóh₁ Proto-Indo-European *dwi- Proto-Italic *dwi- Latin bi-bor. English bi- English plane English biplane From bi- + plane.

  1. To fly in a biplane.

    For an unforgettable experience, try llama trekking along a gentle trail in the White River National Forest, […] There also are sky-high balloon rides, biplaning, hang gliding, paragliding and plenty of wilderness paths for hiking.