triplane

Etymology
From.

Adjective

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

Noun

 * 1)  An airplane that has three pairs of wings, one above the others

Translations

 * Dutch:
 * Finnish: kolmitaso
 * German:
 * Japanese: 三葉機
 * Korean: 삼엽기(三葉機)
 * Polish: ,
 * Russian:
 * Swedish: triplan