バナナの皮[banananokawa] banana peel
一皮[hitokawa] unmasking
化の皮[bakenokawa] masking one's true character
化けの皮をはぐ[bakenokawawohagu] to unmask (someone's true nature)
果皮[kahi] pericarp (ripened ovary wall forming part of a fruit)

外皮[gaihi] investment (in the sense of outer layer)
角皮[kakuhi] cuticle
桜皮[kanba] birch (esp. Japanese white birch)
乾皮[kanpi] dried hides
雁皮紙[ganpishi] traditional Japanese paper made from the fibre of plant species Diplomorpha sikokiana (high quality, glossy)

異方導電膜[ihoudoudenmaku] oriented conduction film
横膈膜[oukakumaku] diaphragm (body)
角膜[kakumaku] cornea
隔膜[kakumaku] partition
間膜[kanmaku] ligament

強膜[kyoumaku] sclera
胸膜[kyoumaku] pleura
結膜[ketsumaku] conjunctiva (eye)
結膜炎[ketsumakuen] conjunctivitis
鼓膜[komaku] eardrum