mon·o·coque 
(mŏnə-kōk′, -kŏk′)
(mŏnə-kōk′, -kŏk′)n.
A metal structure, such as an aircraft, in which the skin absorbs all or most of the stresses to which the body is subjected.
[French : mono-, mono- + coque, shell (from Old French, from Latin coccum, berry, from Greek kokkos).]