English

English Wikipedia has an article on:
Wikipedia

Etymology

    From tri- + plane.

    Adjective

    triplane (comparative more triplane, superlative most triplane)

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

    Noun

    triplane (plural triplanes)

    1. (aviation) An airplane that has three pairs of wings, one above the others

    Translations

    See also

    Anagrams