mem·brane 
/ˈmɛmˌbreɪn/ noun
plural mem·branes /ˈmɛmˌbreɪn/ noun [count] : a thin sheet or layer
▪ The computer chip is covered by/with a plastic membrane. [=the computer chip is covered by/with a very thin sheet of plastic] ; especially : a thin sheet or layer of tissue that is part of a plant or an animal's body
▪ a cell membrane
▪ The computer chip is covered by/with a plastic membrane. [=the computer chip is covered by/with a very thin sheet of plastic] ; especially : a thin sheet or layer of tissue that is part of a plant or an animal's body
▪ a cell membrane
— mem·bran·ous /ˈmɛmbrənəs/ adjective, technical
▪ membranous tissue
▪ membranous tissue
