Definition from Wiktionary, the free dictionary
Jump to navigation Jump to search


English Wikipedia has an article on:
A biplane


From bi- +‎ plane.


biplane (not comparable)

  1. Composed of, or relating to, two planes (flat surfaces extending infinitely in all directions).
    biplane angiography
    Synonym: biplanar
    • 2021, John D. Bonagura, Virginia Luis Fuentes, “Echocardiography”, in John S. Mattoon, Rance K. Sellon, Clifford R. Berry, editors, Small Animal Diagnostic Ultrasound, 4th edition, St. Louis, MO: Elsevier, →ISBN, page 290:
      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. (aviation) Having, or consisting of, two superposed planes, aerocurves, etc.
    a biplane rudder
    (This entry needs quotations to illustrate usage. If you come across any interesting, durably archived quotes then please add them!)


biplane (plural biplanes)

  1. (aviation) An airplane that has two main wings, one above the other and supported by struts.
    Coordinate terms: monoplane, triplane



biplane (third-person singular simple present biplanes, present participle biplaning, simple past and past participle biplaned)

  1. (intransitive, rare) To fly in a biplane.
    • 1995 July, Keith Tuber, “Aspen's Summer Charms”, in Orange Coast, volume 21, number 7, ISSN 0279-0483, page 21–22:
      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.





  1. feminine plural of biplano