Biplane

//ˈbaɪpleɪn// adj, noun, verb

adj, noun, verb ·Rare ·Advanced level

Definitions

Noun
  1. 1
    An airplane that has two main wings, one above the other and supported by struts.
  2. 2
    old fashioned airplane; has two wings one above the other wordnet
Verb
  1. 1
    To fly in a biplane. intransitive, rare

    "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."

Adjective
  1. 1
    Composed of, or relating to, two planes (flat surfaces extending infinitely in all directions). not-comparable

    "biplane angiography"

  2. 2
    Having, or consisting of, two superposed planes, aerocurves, etc. not-comparable

    "a biplane rudder"

Synonyms

All synonyms
airplanebiplanar

Example

More examples

"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."

Etymology

From bi- + plane.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.