内ない壁へき

noun, noun which may take the genitive case particle 'no'

inner wall; interior wall

Refers to the inside surface of a wall, or a wall inside a building or structure. Often used in architectural, medical, or technical descriptions.

• 建たて物ものの内ない壁へきにひびが入はいっている。

  There is a crack in the inner wall of the building.

• 内ない壁へきの塗と装そうが剥はがれてきた。

  The paint on the interior wall has started to peel.